Best Split King Mattress of 2026

The split king is a simple solution to age-old problems that often arise when sharing a bed. This mattress type gives each partner their own sleeping area by placing two separate mattresses next to each other, which can be invaluable for couples, as it doesn’t transfer motion.

How We Tested the Best Split King Mattresses

Testing Criteria

Split-king mattresses offer a combination of shared sleep space and individual comfort control. Because this size comprises two separate mattresses placed side by side, availability at retailers and performance across core comfort metrics are especially important. The following factors guided our evaluation of the best split-king mattresses available.

• Availability: Not all mattress models are offered in split-king format, and availability can vary by retailer, construction, and firmness options. We prioritized mattresses that are widely accessible through major retailers, making it easier for shoppers to compare, try, and purchase with confidence.
• Customer Ratings: Real-world feedback can offer helpful insight into how a mattress performs over time. We read through verified sleeper reviews to get a better understanding for long-term comfort, support, and overall satisfaction with split-king beds.
• Motion Isolation: Split-king setups can inherently reduce motion transfer between sides because the bed consists of two separate mattresses. We still evaluated how well each model controls movement on each side to minimize disruption, especially for couples with different sleep preferences.
• Edge Support & Ease of Movement:
  Because each side of a split king is effectively a twin XL mattress, edge support matters for expanding usable surface area. We evaluated how well each model performs at the perimeter and how easily sleepers can shift positions or get in and out of bed.

How We Evaluated

Because split-king mattresses function as two separate sleep surfaces, our evaluation emphasized both individual performance and overall consistency. We combined availability checks with performance data and hands-on testing in our Seattle Test Lab.

We began by reviewing models offered in split-king format and assessing sleeper ratings and lab scores across core performance categories, including:
Variety of firmness options

• Temperature control
• Top-tier construction and materials
• Durability

Our testing focused on evaluating split-king mattresses that demonstrated reliable performance on each side of the bed while remaining widely available through major retailers. Our experienced testing team rated each mattress based on their comfort layering, support balance, responsiveness, and stability.

Multiple testers also assessed how each mattress performs in a split-king setup, focusing on how well each side functions independently for sleepers with different body types and sleep positions.
After assigning accolades to each option, we selected these split king mattresses as the best.

Our Testing Team

Logan Foley

Editorial Director

Full Bio

Logan Foley

Editorial Director

Logan is a Certified Sleep Science Coach with a deep understanding of what it means to struggle with sleep. Her years of experience researching and testing sleep products – including mattresses, natural sleep aids, and bedding – are critical to her role helping lead the editorial team. When she’s not testing mattresses or researching CBT-I, she enjoys spending time in the sunshine with her husband and her dogs Pepper and Winston.

Mary Fenton

Head of Product Content

Full Bio

Mary Fenton

Head of Product Content

Mary is a product-content marketer who applies a pedigree in journalism, human-centered design, and cultural trends to inform strategy. Prior to Sleep Doctor, Mary led editorial and creative at ESPN and Rad Power Bikes. She likes to build and grow things, and break and fix things, and only sometimes in that order.

Jeremy Klein

Senior Product Testing Manager

Full Bio

Jeremy Klein

Senior Product Testing Manager

Jeremy is a sleep product tester with a passion for methodology and data collection. He’s spent the last six years at Sleep Foundation testing nearly every mattress, pillow, and sheet on the market, and has gained a holistic understanding of how to get the most accurate and universal results possible. When he’s not working, Jeremy likes to make music, play tennis, and watch old movies.

Brad Nehring

Senior Product Analyst

Full Bio

Brad Nehring

Senior Product Analyst

Brad is a lifelong resident of the Pacific Northwest who holds a bachelor’s degree in English from Western Washington University. As someone who has lived with sleep problems throughout his adult life, Brad is passionate about helping others get the rest they need. He’s professionally tested and reviewed sleep products for nearly a decade.

Colin Simpson

Product Research Manager

Full Bio

Colin Simpson

Product Research Manager

Colin leads our product research team and doubles down as our head of video production. He has a distinct passion for translating complicated topics into fun and digestible content.

Best Overall: Winkbed

Best Overall

9.4/10Test Lab Score

WinkBed

High end hybrid bed providing ample support, cushion, and cool sleep.

30% off all WinkBeds mattresses Shop At WinkBeds

Price: $2,570

Mattress Type: Innerspring

Firmness Options: Medium Soft (4), Medium Firm (6), Firm (7), Firm (8)

Trial Period: 120 nights (30-night requirement)

Key Details

• Who It’s Best for: Couples, people with back pain, and any sleeper type regardless of preferred position or body type – though selecting the right firmness is important.
• Feel: Available in four designs. These include plush medium soft (4), balanced medium firm (6), supportive firm (7), and ultra-responsive “Plus” (8).
• What It’s Made of: The Plus contains a comfort layer of zoned latex, while the other three are constructed with adaptive foam comfort layers. All feature a support core of zoned pocketed coils with perimeter support.
• What We Don’t Like: Off-gassing odor can be harsh for the first 72 hours after unboxing.

Scoring & Reviews

The following ratings show how suitable this mattress is for different sleeping positions and sleeper weights. These scores are determined by how well the mattress supports and relieves pressure for each sleeper type.

Side Sleepers

Under 130 lbs

9.5/10

130-230 lbs

10/10

Above 230 lbs

9.5/10

Back Sleepers

Under 130 lbs

8.5/10

130-230 lbs

8/10

Above 230 lbs

7/10

Stomach Sleepers

Under 130 lbs

8.5/10

130-230 lbs

7.5/10

Above 230 lbs

6.5/10

In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.

SELECT AN ICON TO VIEW DETAILS:

Motion Isolation

Pressure Relief

Temperature Control

Edge Support

Ease of Movement

Durability

Motion Isolation

6.5/10

6.5/10

All four firmness options offer above-average motion isolation compared to other hybrids we’ve tested. The Softer, Luxury Firm, and Firmer models have polyfoam layers that significantly absorb vibrations, preventing motion from traveling across the surface. The Plus features latex, and does not isolate as much motion – though it still received high marks from our team. Although the coil core gives the mattress some bounce, the foam layers are substantial enough to dampen motion transfer.

Pressure Relief

8/10

8/10

Like with many hybrid models, the WinkBed’s strong contouring can help relieve painful pressure points. Using pressure-mapping sensors, we found the Softer, Luxury Firm, and Firmer versions of the mattress generously cradle your body and ease pressure off sensitive joints, thanks largely to the multiple foam layers. The Plus version uses polyfoam and latex layers, which offer gentle contouring as well.

Temperature Control

9/10

9/10

The WinkBed’s Tencel cover wicks heat and moisture away from the sleeper’s body. In the Softer, Luxury Firm, and Firmer models, polyfoam infused with cooling gel helps to minimize heat retention. The Plus version uses latex, a naturally breathable material that resists heat buildup.The coil core also promotes significant air circulation. All of these components make the WinkBed one of the best cooling mattresses on the market.

Edge Support

9.5/10

9.5/10

While many hybrid models have sturdy edges, the WinkBed’s perimeter is exceptionally strong . Thanks to extra reinforcement along the edges, our testers noticed minimal compression when sitting along the edge. Most sleepers should feel secure enough to sleep or sit on the full surface of the mattress without worrying about rolling off.The edge of the Softer model may not seem quite as sturdy as the Luxury Firm, Firmer, and Plus versions, due to its plusher design.

Ease of Movement

7.5/10

7.5/10

The three softest versions of the WinkBed Mattress feature polyfoam comfort layers. Polyfoam is more responsive than memory foam, so the WinkBed won’t hug your body as closely as hybrid mattresses made with close-conforming memory foam. The result is strong ease of movement across the surface.The Plus model features a very responsive latex layer, so this option shines when it comes to ease of movement.

Durability

8/10

8/10

As a hybrid mattress with a polyfoam comfort layer, the Winkbed should last slightly longer than the average bed. Hybrids tend to be durable because the inner coils last a long time, and polyfoam is more durable than memory foam. That being said, the foam comfort layer isn’t too thick on the Winkbed (2 to 2.5 inches, depending on the firmness you choose), so you might find the bed getting less comfortable after around eight or nine years when impressions and sagging start to set in.

Read Our Full WinkBed Review

The WinkBed is a standout split king mattress because it’s versatile, well-crafted, and exceptionally supportive. This luxury hybrid pairs an adaptive comfort system with zoned coils, resulting in a design that reinforces heavier areas of the body without feeling excessively stiff beneath the head and legs. Four firmness levels are available, ensuring most people can find a comfortable option regardless of how much they weigh and which sleep position they prefer, and WinkBeds’ generous trial period allows for free exchanges if you aren’t satisfied with your initial selection.

How It Performed

Our testing shows the medium soft feel is best suited to side sleepers up to 230 pounds and back sleepers under 130 pounds. This model’s foam layers provide deep cushioning, so people who weigh more — stomach sleepers in particular — may sink to an uncomfortable degree. These individuals will likely find the medium firm or firm designs most comfortable. We found the WinkBed Plus provided adequate support for back and stomach sleepers weighing more than 230 pounds, but felt a bit too firm for the rest of our testing team.

Construction Breakdown

The WinkBed’s construction depends on which firmness you choose. Standard models available in medium soft (4), medium firm (6), and firm (7) feels begin with adaptive polyfoam quilted to the bottom of the cover, creating a bit of plushness when you get into bed. A second foam layer follows, but its denser composition keeps your body upright while cushioning sensitive areas along the spine. A fourth firmness option, the WinkBed Plus (8), is specifically designed for people who weigh more than 230 pounds. This model swaps out the second foam layer for 2.5 inches of zoned latex.

All WinkBed mattresses feature pocketed coils in their support cores. Thicker coils beneath your midsection push back against the extra weight from your torso and hips, and also line the perimeter to minimize sinkage when you sleep near the edges or get in and out of bed. A breathable, moisture-wicking Tencel cover encases the mattress, completing its luxury hybrid design.

Trial, Shipping, and Warranty

WinkBeds provides free ground shipping in the contiguous United States. The initial sleep trial runs for 120 nights. If you decide to exchange for a softer or firmer model during this time frame, the replacement comes with its own 60-night trial. WinkBeds’ also backs each purchase with a lifetime warranty.

Best Mattress and Adjustable Base Combo: Nectar Adjustable Bundle

Best Mattress and Adjustable Base Combo

8.5/10Test Lab Score

Nectar Adjustable Bundle

An all-inclusive sleep bundle at a terrific price.

Save up to 50% on mattresses + up to 66% on bundles Shop At Nectar

Price: $1,398

Mattress Type: Adjustable Bed

Firmness Options: Medium Firm (6)

Trial Period: 50 nights

Key Details

• Who It’s Best for: Anyone looking to refurnish their mattress, bed frame, sheets, and pillows at a reasonable cost.
• Feel: Nectar mattresses available with the bundle range from medium firm (6) to firm (7), but all offer a balance of contouring and support.
• What It’s Made of: Construction varies by model, but all Nectar mattresses feature adaptive memory foam comfort layers. Some contain high-density polyfoam support cores, while hybrid models have pocketed coil support systems instead.
• What We Don’t Like: Adjustable bed bases have motors that make some noise. While Nectar’s bases have a quiet operation, they aren’t silent and may not be ideal for those who wake up easily.

Scoring & Reviews

The following ratings show how suitable this mattress is for different sleeping positions and sleeper weights. These scores are determined by how well the mattress supports and relieves pressure for each sleeper type.

Side Sleepers

Under 130 lbs

7.5/10

130-230 lbs

9/10

Above 230 lbs

7.5/10

Back Sleepers

Under 130 lbs

7/10

130-230 lbs

8.5/10

Above 230 lbs

7/10

Stomach Sleepers

Under 130 lbs

5.5/10

130-230 lbs

7/10

Above 230 lbs

5.5/10

In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.

SELECT AN ICON TO VIEW DETAILS:

Motion Isolation

Pressure Relief

Temperature Control

Edge Support

Ease of Movement

Durability

Motion Isolation

8.5/10

8.5/10

Nectar mattresses – like many foam and foam hybrid models we’ve tested – provide excellent motion isolation. Their thick memory foam layers absorb movement and prevent motion from transferring to the other side of the mattress. As a result, Nectar models have proven very popular with couples and co-sleepers. You may notice slightly more transfer on the hybrids due to their coil layers, but even then the potential for sleep disturbances is low.

Pressure Relief

8.5/10

8.5/10

Pressure relief is a defining strength of each Nectar foam and hybrid model. Each contains a thick memory foam layer that hugs the body closely to promote even alignment, support the spine, and prevent pressure buildup in the shoulders, lower back, and hips. If you weigh more than 230 pounds, a firmer mattress is recommended to ensure proper support.

Temperature Control

5.5/10

5.5/10

Like a lot of memory foam mattresses on the market, Nectar models may trap heat in their top memory foam layers. Some models use cooling materials to offset heat retention, but some warmth is to be expected. The Nectar hybrids sleep somewhat cooler due to more airflow in their coil systems. Cooling sheets can also make a noticeable difference.

Edge Support

7/10

7/10

Perimeter support depends on which model you choose for your bundle, but our team has found that Nectar mattresses tend to offer a stronger edge than many competing all-foam and foam hybrid models. A thick base layer of high-density polyfoam helps secure each Nectar mattress when you lie close to the edges or get in and out of bed. People who weigh more than 230 pounds may notice more compression, but even then Nectar beds are relatively sturdy.

Ease of Movement

5.5/10

5.5/10

Nectar mattresses can be difficult to move on – especially softer models with thick top layers. Memory foam has a tendency to sink when compressed, and this can create a hugging effect akin to feeling “trapped” by your mattress. Combination sleepers and people who frequently get up during the night may struggle with these mattresses.

Durability

6.5/10

6.5/10

A new mattress and adjustable bed can be a useful investment if you deal with frequent shoulder, back, or hip pain — but most of these purchases amount to thousands of dollars. Nectar’s Adjustable Bundle is much more affordable than the average mattress-and-base combo, and you’ll also receive pillows and a sheet set with your order.

How It Performed

How your Nectar Adjustable Bundle performs largely depends on which mattress model you choose. That said, most side sleepers on our team weighing at least 130 pounds say all mattresses in the Nectar lineup meet their needs. Back sleepers up to 230 pounds also found most Nectar mattresses comfortable.

Our tests show all Nectar models excel at motion isolation for couples and alleviate pressure well. You may notice some heat buildup on Nectar mattresses due to their thick memory foam comfort layers, so cooling sheets or a breathable mattress protector are recommended.

Construction Breakdown

Six Nectar mattresses are available with the bundle. These options include the all-foam Nectar Mattress, Nectar Premier, and Nectar Premier Copper models, or the Nectar Hybrid, Nectar Premier Hybrid, and Nectar Copper Hybrid if you prefer a coil-based support system. You can also choose between two adjustable bases, the Classic and Premier — the former costs less, while the latter has more bells and whistles. Two pillows, a sheet set, and a mattress protector complete the bundle.

We recommend the Premier base if you are hoping to alleviate aches and pains. A customizable three-zone massage function produces gentle vibrations to reduce discomfort where you feel it most. You can also choose between a wide range of upper and lower body positions, including zero gravity with your legs elevated over your head and torso. Additional features include under-bed lighting, USB ports for charging your devices overnight, and adjustable legs.

Trial, Shipping, and Warranty

In addition to its affordable sticker price, the Nectar Mattress qualifies for free ground shipping anywhere in the contiguous U.S. Customers also receive a free sleep accessories bundle with their purchase, which includes a pillow, sheet set, and mattress protector. Nectar’s 365-night sleep trial is one of the longest in the online mattress industry. Owners who keep the mattress after the trial ends also receive a lifetime warranty against structural defects.

Most Comfortable: Saatva Classic

Most Comfortable

9.5/10Test Lab Score

Saatva Classic

Traditional innerspring with a plush euro-top and excellent breathability.

$300 off orders of $1,000 or more Shop At Saatva

Price: $1,795

Mattress Type: Innerspring

Firmness Options: Soft (3), Medium Firm (6), Firm (8)

Trial Period: 365 Nights ($99 return fee)

Key Details

• Who It’s Best for: People with back pain who appreciate extra support and springiness.
• Feel: Available in soft (3), medium firm (6), and firm (8) designs. All offer sturdy support and respond to movement with a strong bounce.
• What It’s Made of: Adaptive polyfoam and a memory foam lumbar pad in the comfort system, followed by transitional microcoils and robust innerspring coils.
• What We Don’t Like: Couples will notice a fair amount of motion transfer, and this can lead to sleep disruptions.

Scoring & Reviews

The following ratings show how suitable this mattress is for different sleeping positions and sleeper weights. These scores are determined by how well the mattress supports and relieves pressure for each sleeper type.

Side Sleepers

Under 130 lbs

8.5/10

130-230 lbs

9/10

Above 230 lbs

8.5/10

Back Sleepers

Under 130 lbs

9/10

130-230 lbs

8.5/10

Above 230 lbs

7.5/10

Stomach Sleepers

Under 130 lbs

9.5/10

130-230 lbs

8.5/10

Above 230 lbs

7.5/10

In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.

SELECT AN ICON TO VIEW DETAILS:

Motion Isolation

Pressure Relief

Temperature Control

Edge Support

Ease of Movement

Durability

Motion Isolation

6.5/10

6.5/10

Motion isolation is one of the Saatva Classic’s weaker performance areas. The dual-coil design makes the surface responsive to movement, resulting in a noticeable bounce when you switch sleep positions or get in and out of bed. This can be problematic if you share your bed with a partner, as their movements can disrupt your sleep and vice versa.

Pressure Relief

8/10

8/10

While all of the Saatva firmness options have pressure-relieving potential, the amount of pressure relief that an individual experiences on the mattress will vary based partially on their weight and sleep position. Individuals who weigh under 130 pounds will likely experience the most pressure relief on the Plush Soft version of the mattress, while sleepers over 230 pounds will likely get the best balance of contouring and support from the Firm version.

Temperature Control

10/10

10/10

While hybrid mattresses tend to sleep cool, the Saatva Classic’s construction may help it sleep even cooler than many other hybrid models. While all the firmness options may help promote a cooler night’s sleep, the Plush Soft version has more conforming that could lead to slightly more heat retention.

Edge Support

8.5/10

8.5/10

The Saatva Classic has a sturdy enough edge to allow almost all individuals to sit or sleep near the perimeter without excessive sinkage. This reinforcement is excellent even compared to most hybrid models.Because the Plush Soft version of the Saatva allows individuals to sink in more, its edges may not feel quite as secure as those of the Luxury Firm and Firm versions of the mattress.

Ease of Movement

8.5/10

8.5/10

The Saatva Classic’s comfort system consists of polyfoam and minicoils. While these materials conform to your body, they regain their shape more quickly than memory foam. This prevents sleepers from feeling “trapped” in the bed.All three designs are relatively easy for sleepers to move across and change positions on. However, most individuals will probably find the firmer versions of the mattress easier to move on, since they conform less than the Plush Soft version.

Durability

8/10

8/10

The Saatva Classic is stacked with features that help ensure durability. It’s constructed with both pocketed and support coils, plus polyfoam and memory foam comfort layers for additional comfort and support. Shoppers have a choice of thickness and firmness levels, and in general, going with thicker and firmer options can help add to the longevity. With its thick, 13-gauge coils in the bottom layer providing a sturdy base, this mattress should easily make it to the 10-year mark.

Read Our Full Saatva Classic Review

Saatva has released many different mattresses over the years, but the flagship Classic innerspring has remained enduringly popular. A coil-on-coil design sets the Classic apart from competitors. Gentle pocketed microcoils provide transitional support by cushioning your body, while the support core contains robust low-gauge hourglass coils made from recycled steel. You’ll notice plenty of bounce when you get in and out of bed — this helps you move across the surface without feeling stuck — and the perimeter feels exceptionally sturdy.

How It Performed

Tests show the soft (3) design is ideal for side sleepers up to 230 pounds, while the firm (8) is best suited to back and stomach sleepers weighing 130 pounds or more. The medium firm (6) model should meet your needs if you’re looking for a balance of cushioning and support.

Temperature control is one area where the Saatva Classic really shines. Steady airflow through both coil layers helps ensure a comfortable interior temperature, and the breathable organic cotton cover keeps you cool on the surface. Our tests also show the Classic excels at edge support, and most of our team members had little to no trouble moving on the mattress.

Construction Breakdown

All three firmness levels share a similar comfort system featuring a Euro-top with sewn-in cushioning, wrapped in a knit cover made from organic cotton. The Plush Soft and Luxury Firm models incorporate 1.25 inches of soft polyfoam, while the Firm model uses 1.5 inches of firm polyfoam.

Below the Euro-top, layers of polyfoam and memory foam add plushness and targeted lumbar support, helping to maintain proper spinal alignment. A transitional layer of 14.5-gauge foam-encased coils adapts to the sleeper’s body while promoting strong airflow.

The support core consists of 13-gauge hourglass coils designed for durability and airflow. The mattress is available in two height options: the 11.5-inch version includes a 4-inch layer of coils, while the 14.5-inch version features a 7-inch coil layer. A thin layer of loft and fiber pads supports the coil system, while a foam encasement reinforces the mattress edges for better stability and reduced sinkage.

Trial, Shipping, and Warranty

Free White Glove Delivery and setup are available in the United States. The Saatva Classic comes with a 365-night trial. If you decide to return or replace your mattress, a $99 transportation fee will apply. The mattress is backed by a lifetime warranty.

Best for Couples: Brooklyn Bedding Signature Hybrid

Best for Couples

8.5/10Test Lab Score

Brooklyn Bedding Signature Hybrid

A high-quality, affordable hybrid with multiple firmness options.

25% off sitewide Shop At Brooklyn Bedding

Price: $1,026

Mattress Type: Hybrid

Firmness Options: Medium Soft (4), Medium Firm (6), Firm (8)

Trial Period: 120 nights (30-night requirement)

Key Details

• Who It’s Best for: Side, back, and stomach sleepers across most weight groups hoping to save some money on their new mattress.
• Feel: You can choose from cushy medium soft (4), balanced medium firm (6), and ultra-supportive firm (8) designs.
• What It’s Made of: The Signature Hybrid contains two comfort layers of adaptive polyfoam. Pocketed coils and dense base foam make up the support core.
• What We Don’t Like: Firmness exchanges are not available during the sleep trial, so nailing down the right design the first time around is key.

Scoring & Reviews

The following ratings show how suitable this mattress is for different sleeping positions and sleeper weights. These scores are determined by how well the mattress supports and relieves pressure for each sleeper type.

Side Sleepers

Under 130 lbs

8.5/10

130-230 lbs

9/10

Above 230 lbs

8.5/10

Back Sleepers

Under 130 lbs

7.5/10

130-230 lbs

7/10

Above 230 lbs

6/10

Stomach Sleepers

Under 130 lbs

7.5/10

130-230 lbs

6.5/10

Above 230 lbs

5.5/10

In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.

SELECT AN ICON TO VIEW DETAILS:

Motion Isolation

Pressure Relief

Temperature Control

Edge Support

Ease of Movement

Durability

Motion Isolation

7/10

7/10

The Signature isolates motion fairly well. Many hybrid models feel more responsive on the surface, and this can generate more motion transfer when someone changes positions or gets in and out of bed.The Signature’s thick foam layers absorb movement to eliminate a great deal of transfer. You may still notice some ripples of transfer across the surface on the medium soft and medium firm models. For the firm Signature, the transfer will be more noticeable.

Pressure Relief

8/10

8/10

All three of the Signature’s firmness levels offer great pressure relief. The most comfortable option for you depends on your sleep position and body type.The medium soft model reduces pressure for side sleepers with extra cushioning the shoulders and hips. The medium firm feel is more supportive for back sleepers up to 230 pounds. You won’t sink too much, but the foam still conforms and relieves pressure. Those over 230 pounds and stomach sleepers should consider the firm model.

Temperature Control

7/10

7/10

The Signature’s coil system promotes airflow to maintain a comfortable temperature. The TitanFlex foam is also quite breathable compared to foams found in other hybrids.The firm model provides the best temperature control because it sinks very little and you’ll feel more surface airflow. The medium soft and medium firm models conform more closely. Hot sleepers may feel a bit too warm on these models – but for most, the mattress should sleep cool regardless of selected firmness.

Edge Support

7.5/10

7.5/10

Hybrids generally excel at edge support, and the Signature is no exception. Coil support cores reinforce the perimeter better than latex or foam. This means less sinkage when you get on and off the mattress, and more stability if you like sleeping near the edges.The medium soft and medium firm models sink more than the firm because the foam conforms more closely, but they still maintain good overall stability if you weigh 230 pounds or less.

Ease of Movement

6.5/10

6.5/10

Polyfoam can be a responsive material, but the Signature’s latex-like TitanFlex foam is exceptionally bouncy. This allows you to move across the mattress rather easily. You won’t sink into the bed as you might on a mattress with memory foam.That said, the medium soft Signature can hinder movement on the surface. This model conforms the closest, so you’ll feel more sinkage when moving between the bed’s edges and interior. The medium firm and firm models provide more bounce-back.

Durability

7.5/10

7.5/10

The Brooklyn Bedding Signature Hybrid has an estimated lifespan of six to seven years. As with other hybrids, the pocketed coils provide a solid base that evenly distributes pressure to prevent excessive strain on any one area. The most vulnerable part of the mattress is the comfort system, particularly the quilted top. The softer foams used in the mattress’ top layers may eventually develop imprints that affect the cushioning, something that’s more prominent in the softer model.

Read Our Full Brooklyn Bedding Signature Hybrid Review

Shoppers looking for an affordable split king may want to consider the Brooklyn Bedding Signature Hybrid. Shoppers can choose between three firmness levels that share similar materials but have distinct feels. You can opt for medium soft (4), medium firm (6), or firm (8).

How It Performed

Best for Side Sleepers: Nolah Evolution 15

Best for Side Sleepers

8.7/10Test Lab Score

Nolah Evolution 15

A cloud-like experience with a plush euro-top in multiple firmnes options.

30% off sitewide + extra $50 off with code: SF50 Shop At Nolah Sleep

Price: $1,480

Mattress Type: Hybrid

Firmness Options: Medium (5), Medium Firm (6), Firm (8)

Trial Period: 120 nights (30-night requirement), $99 return pickup fee

Key Details

• Who It’s Best for: Most side and back sleepers who want pressure relief from their mattress and sleep hot.
• Feel: Sold in medium (5), medium firm (6), and firm (8) designs, all of which provide deep cushioning and targeted midsection support.
• What It’s Made of: The comfort system contains four individual layers of adaptive open-cell foam. Zoned pocketed coils with a reinforced perimeter create a strong support system.
• What We Don’t Like: Since the mattress measures 15 inches thick, you’ll need to invest in a deep-pocket fitted sheet.

Scoring & Reviews

The following ratings show how suitable this mattress is for different sleeping positions and sleeper weights. These scores are determined by how well the mattress supports and relieves pressure for each sleeper type.

Side Sleepers

Under 130 lbs

8.5/10

130-230 lbs

9/10

Above 230 lbs

8.5/10

Back Sleepers

Under 130 lbs

7.5/10

130-230 lbs

7/10

Above 230 lbs

6/10

Stomach Sleepers

Under 130 lbs

7.5/10

130-230 lbs

6.5/10

Above 230 lbs

5.5/10

In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.

SELECT AN ICON TO VIEW DETAILS:

Motion Isolation

Pressure Relief

Temperature Control

Edge Support

Ease of Movement

Durability

Motion Isolation

7.5/10

7.5/10

Thanks to its thick polyfoam layers, the Nolah Evolution 15 Hybrid absorbs enough movement to prevent most sleep disruptions. However, there is still some motion transfer because of the bounciness of the coils. You can expect the most motion transfer on the firm (8) model and the least on the plush (5) option. Across the board, though, our testers noticed only light motion transfer across all three firmness levels.

Pressure Relief

8.5/10

8.5/10

The combination of zoned coils and multiple polyfoam layers, including zoned AirFoam, enable the Nolah Evolution Hybrid to cushion pain points and provide above-average pressure relief. Choosing the right firmness option can optimize pressure relief. While individual preferences vary, a plush (5) or luxury firm (6) model works best for most side sleepers under 230 pounds, while the luxury firm (6) or firm (8) are better suited to the majority of back and stomach sleepers.

Temperature Control

7/10

7/10

Like many hybrids, the Nolah Evolution 15 excels at temperature regulation. Cooling fibers in the cover are engineered to draw heat away from the body, and the aerated polyfoam layers help reduce heat retention. The coil layer also promotes steady ventilation.In our testing, all three models resisted heat retention. That said, compared to the firm (8) model, the plush (5) and luxury firm (6) permit more sink and allow slightly less cooling airflow around the skin.

Edge Support

8.5/10

8.5/10

The sturdy 8-inch coils gives the Nolah Evolution Hybrid a reliable level of edge support. While there can be some sink from the foam layers, resilient polyfoam prevents instability around the perimeter of the bed.Edge support does vary based on the firmness level. Our team noticed a reduction in edge support between the firm (8) and the luxury firm (6) and plush (5) models. Even on the softer models, though, you get solid edge support from this mattress.

Ease of Movement

6.5/10

6.5/10

The Nolah Evolution 15’s foam layers don’t sink or hug excessively, and the bounce of the coils facilitates movement on the surface. This makes this mattress a solid fit for combination sleepers or anyone who hates feeling stuck in place when lying in bed. With its softer surface, the plush (5) model restricts movement a bit more than the other two. The firm (8) model provided standout ease of movement to all of our sleepers.

Durability

7.5/10

7.5/10

With a stunning 15-inch profile, seven inches of which are polyfoam found in the comfort layer, the Nolah Evolution 15 is a highly durable mattress. Beneath that are 8-inch coils to give the bed more support. If longevity is your main concern, going with the firmer of the three options may extend the life a bit more. Otherwise, you can generally expect around eight or nine years of comfort.

Read Our Full Nolah Evolution 15 Review

Full Breakdown

The Nolah Evolution 15 is a luxury Euro-top hybrid available in three firmness levels to accommodate different weights and sleep positions. A sophisticated design with a balance of contouring and support makes the mattress a good option for adjustable owners seeking a split king.

How It Performed

The Evolution 15 earns high marks for temperature neutrality thanks to its breathable foams and steady airflow throughout the coil system. The perimeter coils are also reinforced to minimize sinkage when you sleep near the edges or get in and out of bed. This push-back makes the mattress easy to move across for most people.

The medium (5) feel offers the closest contouring and cushioning, making it best suited to side and back sleepers who weigh up to 230 pounds. The firm (8) feel is most supportive, so back and stomach sleepers who weigh more than 230 pounds will probably prefer this option instead. The medium firm (6) feel is most balanced, and should be comfortable for anyone in the range of 130 to 230 pounds regardless of their primary sleep position.

Construction Breakdown

Under a foam-padded Euro-top, the Evolution 15 is constructed with two layers of adaptive foam that distribute your weight and target pressure points along the spine. These foams are also designed to absorb a minimal amount of body heat and help you stay cool during the night, even if you tend to run warm in bed. A cover made of proprietary ArcticTex fabric provides additional cooling.

The support core contains pocketed coils to stabilize and reinforce the mattress without creating too much motion transfer or making the surface feel excessively stiff. This layer is divided into different zones based on coil gauge, with the thickest coils located beneath your midsection to prevent uncomfortable sinkage.

Trial, Shipping, & Warranty

Nolah offers free ground shipping throughout the contiguous U.S. The Evolution 15 comes with a 120-night sleep trial, though customers may forgo the trial period to lower the cost of their order – though this disqualifies them from returning the mattress at any point. All purchases also include a lifetime warranty against structural defects.

 

The Nolah Evolution 15 is a luxury Euro-top hybrid available in three firmness levels to accommodate different weights and sleep positions. A sophisticated design with a balance of contouring and support makes the mattress a good option for adjustable owners seeking a split king.

How It Performed

Best for Back Pain: Bear Elite Hybrid

Best for Back Pain

8.5/10Test Lab Score

Bear Elite Hybrid

A close-conforming memory foam hybrid offering great pressure relief.

40% sitewide with code: SF40 Shop At Bear

Price: $1,499

Mattress Type: Hybrid

Firmness Options: Medium (5), Medium Firm (6), Firm (8)

Trial Period: 120 nights (30-night break-in period)

Key Details

• Who It’s Best for: People with shoulder, back, or hip pain across most position and weight groups.
• Feel: You can choose from medium (5), medium firm (6), and firm (8) designs, all with targeted support for the torso and hips.
• What It’s Made of: A memory foam comfort layer and zoned transitional polyfoam, followed by seven-zone pocketed coils with a reinforced perimeter.
• What We Don’t Like: Some couples report motion transfer in response to movement – even on the softest design.

Scoring & Reviews

The following ratings show how suitable this mattress is for different sleeping positions and sleeper weights. These scores are determined by how well the mattress supports and relieves pressure for each sleeper type.

Side Sleepers

Under 130 lbs

8.5/10

130-230 lbs

9/10

Above 230 lbs

8.5/10

Back Sleepers

Under 130 lbs

7.5/10

130-230 lbs

7/10

Above 230 lbs

6/10

Stomach Sleepers

Under 130 lbs

7.5/10

130-230 lbs

6.5/10

Above 230 lbs

5.5/10

In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.

SELECT AN ICON TO VIEW DETAILS:

Motion Isolation

Pressure Relief

Temperature Control

Edge Support

Ease of Movement

Durability

Motion Isolation

7/10

7/10

The Bear Elite Hybrid shows considerable ability to prevent vibrations from traveling across the surface of the mattress. Its memory foam layer only reacts where weight is directly applied, which helps keep movement from causing ripple effects that spread to the other side of the bed.However, the bounce of the coils can cause some motion transfer, especially on the firm model that has a reduced amount of contouring.

Pressure Relief

8/10

8/10

The Bear Elite Hybrid offers excellent pressure relief that stems from its comfort system and the zoned, pocketed coils in its support core. In our testing, it was side and back sleepers who tended to get the best pressure relief and support. That said, stomach sleepers liked the firm (8) model that maintained a flat, stable surface with just enough cushioning for the midsection.

Temperature Control

7/10

7/10

This mattress doesn’t feel overwhelmingly hot, but it also probably shouldn’t be the top choice for hot sleepers. The copper-infused foam makes it slightly cooler than some other memory foam mattresses, but heat can still collect in and around the foam. The risk of overheating is highest on the Luxury Plush model because it has the closest contouring around the skin, which may make it harder for heat around the body to dissipate during the night.

Edge Support

7.5/10

7.5/10

Reinforced edges in the support core help give this mattress a solid rating for edge support. While you’ll notice foam compression around the perimeter, it’s not so significant that you’ll feel like the mattress is giving out beneath you.Of the three different firmness options, edge support is clearly strongest in the firm (8) model and weakest in the one with a firmness level of medium (5).

Ease of Movement

6.5/10

6.5/10

When you need to switch your sleeping position or adjust your body’s alignment on the mattress, you generally won’t encounter much resistance. Sleepers over 230 pounds may find that there’s less ease of movement, especially on the softer models. But in most cases, the springiness from the thick layer of pocketed coils enables relatively easy movement on the surface of the Bear Elite Hybrid.

Durability

7.5/10

7.5/10

The Bear Elite Hybrid Mattress scores above average for durability thanks to its pocketed coils, reinforced perimeter, and memory foam and polyfoam layers. The mattress comes in three firmness levels, and going firmer will typically extend the life of the mattress a bit more. Overall, you should expect around seven to eight years of use.

Read Our Full Bear Elite Hybrid Review

Bear has earned a reputation for mattresses and other sleep products that deliver exceptional cooling. The Elite Hybrid is no exception. A cover made from breathable Celliant-blend fabric, copper-infused memory foam, and steady air circulation through the coil layer allow you and your partner to sleep at a comfortable temperature throughout the year. Co-sleepers should also enjoy the Elite Hybrid for its strong edge support and good responsiveness for sex.

How It Performed

Best for Combination Sleepers: DLX Premier Hybrid

Best for Combination Sleepers

8.6/10Test Lab Score

DLX Premier Hybrid

Versatile hybrid with six differet firmness options.

Extra $100 off with code: SLEEP Shop At DLX Mattress

Price: $1,700

Mattress Type: Hybrid

Firmness Options: Medium Soft (4), Medium Firm (6), Firm (8)

Trial Period: 120 nights (30-night requirement)

Key Details

• Who It’s Best For: Couples with differing firmness preferences, people with back pain, couples, and hot sleepers.
• Feel: Available in split-firmness designs with a different feel on each side. Firmness options include medium soft (4), medium firm (6), and firm (8).
• What It’s Made Of: A comfort system with three adaptive foam layers over pocketed coils with perimeter reinforcement and high-density base foam.
• What We Don’t Like: A standard split king with uniform firmness across the entire surface is not available.

Scoring & Reviews

The following ratings show how suitable this mattress is for different sleeping positions and sleeper weights. These scores are determined by how well the mattress supports and relieves pressure for each sleeper type.

Side Sleepers

Under 130 lbs

8.5/10

130-230 lbs

9/10

Above 230 lbs

8.5/10

Back Sleepers

Under 130 lbs

7.5/10

130-230 lbs

7/10

Above 230 lbs

6/10

Stomach Sleepers

Under 130 lbs

7.5/10

130-230 lbs

6.5/10

Above 230 lbs

5.5/10

In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.

SELECT AN ICON TO VIEW DETAILS:

Motion Isolation

Pressure Relief

Temperature Control

Edge Support

Ease of Movement

Durability

Motion Isolation

7/10

7/10

The DLX Premier Hybrid tested pretty well for motion isolation. As a polyfoam hybrid, the foam comfort layers are gonna eat up a fair amount of motion transfer, but the coil support core won’t isolate motion as well as an all-foam base. Also the fact that the comfort layer is all polyfoam instead of memory foam contributes to this. Since this bed has three firmness options, it’s also important to consider that the softer the bed is, the better it will isolate motion.

Pressure Relief

8/10

8/10

With a hefty 4″ foam comfort layer, the DLX Premier Hybrid did a really good job easing pressure points across the body, particularly in the shoulders and hips. If you like that close-conforming mattress feel, this is a good option for you.

Temperature Control

7/10

7/10

This bed tested pretty well for temperature neutrality. We found that while the coils in the support core allows for a good amount of airflow, the foam in the comfort layers trap a good amount of body heat throughout the night.

Edge Support

8.5/10

8.5/10

This bed tested very well for edge support, with our testers find very little sinkage when applying weight to the edge of the mattress. This is due to the reinforced perimeter, where the coils on the edge are a bit thicker than those in the middle of the bed.Since this bed has three firmness options, it’s also important to consider that the firmer the bed is, the better edge support it will have.

Ease of Movement

6.5/10

6.5/10

Our testers, particularly the heavier ones, noticed a bit more resistance to move across the bed when performing our ease of movement tests. This comes as no surprise, since the foam comfort layers are pretty thick and conform close to the body.

Durability

7.5/10

7.5/10

The DLX Premier Hybrid mattress has better than average durability thanks to its construction. It has four foam layers (though density levels are just mediocre) and pocketed coil support. You might be able to extend the life of the mattress beyond seven or eight years by choosing the firmer option and going with the 8-inch coils (versus the 6-inch), which should help postpone sinkage.

At SleepFoundation.org, we always encourage readers to take their sleep position into account when choosing a new mattress. This can be especially tricky for a combination sleeper who shuffles between two or three positions each night. The DLX Premier Hybrid earns our recommendation thanks in large part to its versatility. Three firmness options, as well as the dual-firmness design for split king models, help ensure the mattress meets the needs of most people across different body types and sleep positions.

How It Performed

What Is a Split King Mattress?

A split king mattress is, as the name states, a king mattress that is split down the middle to form two separate mattresses. When put together, the dimensions are approximately 76 inches by 80 inches, which is the same as a traditional king. Apart, each mattress is a twin XL: 38 inches by 80 inches.

Why Would You Need a Split King?

Split king mattresses are most often used by couples because partners don’t always have the same sleeping needs. Body size, sleeping position, and personal preference affect what feels comfortable. A split king allows each partner to choose their own distinct sleep surface while still sharing a bed.

“Compromising on the type of bed can mean sacrificing critical elements of sleep health. A poorly suited mattress may lead to restless nights, chronic pain or exacerbated posture issues by failing to support the body’s natural curves.”

Lulu Guo, MD

Sleep Medicine Physician

Differing Firmness Needs

Body weight and sleeping position are two of the biggest factors when choosing an appropriate firmness level. Couples’ needs can vary widely in this regard. For instance, a stomach sleeper over 230 pounds is likely to need a much firmer mattress than their partner who weighs under 130 pounds and sleeps on their side.

Motion Isolation

When a person tosses and turns or gets out of bed, vibrations may travel across the mattress surface and disturb their partner. Since a split king is two separate pieces, movement on one side of the bed does not transfer to the other.

For Use on an Adjustable Base

Sleepers may use an adjustable base for a wide variety of reasons, including comfort and helping to prevent snoring and acid reflux. Combining an adjustable base with a split king allows each partner to customize the position of their bed.

“Elevating the head of the bed by 20 to 45 degrees can significantly alleviate snoring and acid reflux symptoms by leveraging gravity to optimize body positioning,” says sleep medicine physician Lulu Guo, M.D. “For acid reflux, this incline prevents stomach acid from flowing back into the esophagus, reducing nighttime heartburn. For snorers, it helps keep airways open by minimizing the collapse of throat tissue and tongue obstruction.”

How to Choose the Best Split King Mattress

Picking the right split king mattress is much like choosing any other size but with a few additional considerations. If you’re purchasing a mattress to share with your partner, their preferences are also important to consider. You may want to reflect on your available floor space, decide what’s within your budget, and ensure that a split king will work with the bed frame you have in mind.

Typically, your body weight and sleeping position have the biggest impacts on what you’ll prefer. First, narrow down your choices to models with the right level of support and comfort. Once you know if a mattress will meet your basic needs, then look at its additional features.

Firmness Level

Firmness affects comfort, and the ideal level depends on your body type, sleep position, and personal preferences. To compare firmness, we rate it on a scale from 1 to 10. Lower numbers indicate a softer surface, while higher numbers are firmer. The majority of sleepers prefer a model between medium (5) and firm (7). Couples often select a different firmness for each side of their split king to more closely match their preferences.

Pressure Relief and Contouring

Many sleepers develop pressure points from resting on the same parts of their bodies for long periods. A mattress that relieves pressure well redistributes weight and provides cushioning beneath parts of the body prone to pressure points like the hips and shoulders.

Some sleepers like the feel of a mattress that contours closely. This cradling can relieve pressure while supporting the spine. However, others find it restricts movement. Consider whether you prefer the feeling of sleeping “on” or “in” a mattress to determine what level of contouring you’d prefer.

Firmness level also contributes to pressure relief and contouring, so if you choose a split king with a different firmness on each side, you can also achieve more or less contouring. In general, a softer mattress will have more contouring and a firmer will have less, though much depends on the specific materials used.

Sleeping Position

Sleeping position is one of the most important considerations when choosing a mattress. Typically, side sleepers enjoy softer mattresses, stomach sleepers prefer firmer, and back sleepers generally fall in the middle. Combination sleepers may want to consider mattresses that perform well across positions for their weight group. 

“Split king beds can offer tailored sleep comfort based on individual sleeping positions,” Dr. Guo says. “One partner can opt for a softer mattress if they are side sleepers to cushion the hips and shoulders, whereas back or stomach sleepers can choose a firmer mattress to maintain spinal alignment.”

Price

Split king prices can run the gamut, depending on their materials, but they tend to be more expensive than traditional kings or California kings. Because they’re two separate mattresses, manufacturers use more materials to build them than they would to create a single king bed. Split king foundations are also generally more expensive for the same reason.

Manufacturers also differ in how they list prices. Some provide the cost of both sides together, and others sell them separately as twin XLs. Note how the price is listed before purchasing. To save some money, look for mattress deals around federal holidays.

Quality Materials

Not all mattress materials are equal, and price point isn’t always an indicator of quality. Poorly manufactured components may break down more quickly, potentially limiting the mattress’ lifespan. High-quality materials often increase the cost of a mattress, but it may ultimately be more affordable to pay extra upfront rather than regularly replacing lower quality models.

Motion Isolation

A mattress that isolates motion absorbs vibrations to prevent them from moving across the surface. Motion isolation can be invaluable for sleepers who share a bed. Split king mattresses isolate motion exceptionally well because they consist of two separate pieces. 

“This can be a strategic solution for sleepers who need to get up frequently throughout the night so as to not disturb their partners,” Dr. Guo says.

Temperature Regulation

Body heat can build up while you sleep, and some people are more sensitive to excess warmth. Mattresses that regulate temperatures well often have good airflow, foam infused with cooling technology, or fabric designed to wick away heat and moisture. Innerspring and hybrid mattresses tend to sleep cooler than all-foam models because they trap less heat within their cores.

Edge Support

Edge support can be valuable for individuals who struggle to get into and out of bed and those who need the entire mattress surface. Since each side of a split king mattress is just 38 inches wide, a sturdy perimeter may be especially important. However, edge reinforcement could also affect the feel of the area where the two pieces meet.

“Split kings can offer couples individualized comfort over a one-size-fits-all approach,” Dr. Guo says. “By addressing disparities in firmness, motion, temperature and medical requirements, it fosters better sleep harmony and overall well-being.”

Warranty and Other Policies

Warranty, shipping, and trial policies vary widely between mattress manufacturers. Check to see what a mattress warranty covers and for how long. Even if the mattress has lifetime coverage, examine what defects qualify, whether the policy is prorated, what exclusions apply, and what’s required of the owner.

Though many companies offer free shipping, there are often restrictions or additional charges for orders to P.O. boxes, Hawaii, Alaska, and Canada.

Some sleep trials may truly be risk-free, but others charge restocking, disposal, or transportation fees for returns. Companies also frequently allow just one trial per household, and many require that the unwanted mattress remains in excellent condition. Review all the fine print before committing to a mattress purchase.

What Type of Split King Mattress Is Best?

Hybrid, innerspring, foam, latex, and airbed models are all excellent options for a split king, though each has potential pros and cons.

Hybrid

Definition:Hybrid mattresses combine the best features of innerspring and all-foam mattresses, while minimizing the drawbacks of each. They consist of a pocketed coil-based support core topped by a substantial comfort system. The comfort system may feature latex, memory foam, or a combination of the two.

Highlight: Hybrids typically offer superior contouring and pressure relief, making them a good fit for side sleepers, and their coil base provides nice pushback and support. There are several split king hybrids available in a variety of firmness levels. 

Foam

Definition: Foam mattresses feature layers of different types of foam in various configurations. Comfort layers are usually made from memory foam or soft polyfoam. Instead of pocketed coils, they rely on a strong polyfoam core for support.

Highlight: Memory foam offers deep contouring and soothing pressure relief, so they’re great for side sleepers or anyone who likes to feel hugged by their mattress. The flexibility of foam mattresses makes them an ideal option if you’re looking to pair a split king with an adjustable bed frame. 

Innerspring

Definition: Innersprings were once the most common mattress type, though they’ve been overtaken by more comfortable options in recent years. Innersprings feature a coil core and a fabric cover, with little or no comfort or transitional system. 

Highlight: Innerspring mattresses remain an affordable option and also tend to sleep cool. It’s more common these days to find hybrid models in a split king than a true innerspring. 

Latex

Definition: Latex beds are made from layers of natural or synthetic latex rubber, though natural is more common. Natural latex is derived from rubber tree sap and processed using either the Talalay or Dunlap methods. Talalay latex typically creates a lighter and softer mattress, while Dunlap latex tends to be firmer and more durable.

Highlight: Latex has the ability to distribute weight over a larger area so it contours gently without too much give or sink. Split king latex models aren’t as common as other types, but they are available if you prefer the feel of latex.

Airbed

Definition: The bulk of an airbed consists of multiple air-filled chambers, which may be filled or deflated to the sleeper’s liking with a built-in pump. The pump is often controlled by a smartphone app or remote control. Airbeds may also feature extra padding on top with materials like foam or latex.

Highlight:Airbeds allow users to customize their sleep experience by changing the firmness level with the push of a button. Many airbeds are available as split kings allowing for full adjustability for you and your partner.

How We Test: Your Comfort Is Our Science

Our industry-leading product testing team cares deeply about improving your sleep. Having a holistic understanding of a mattress’s role as part of a sleep system is paramount to our testing process. Since a bed’s comfort and feel depend largely on body weight and sleeping position, our testing team represents a wide range of body types, sleep positions, and comfort preferences.

In our Seattle-based Test Lab, we use an objective, hands-on process to evaluate mattresses across performance categories. The following are the key guidelines that inform our performance ratings. Our ultimate goal is to ensure you have all the information you need to make the best purchase decision for you.

How We Determine Our Overall Scores

To determine a mattress’s overall score, we assign weighted percentages to performance categories based on how important they are to the individual sleep experience. For instance, areas like pressure relief and temperature control tend to matter more to people than something like off-gassing, and because more people sleep on their side and back than on their stomach, we weigh those positions more heavily.

Dive Deeper – Mattress Guides by Size

If you’re still not sure if a split king mattress is right for you and your partner, you can take a look at our other mattress guides broken down by size.

Still have questions?

Our product experts have extensive experience testing just about every sleep product on the market.

Send an email to AskAnExpert@sleepfoundation.org with your questions and we’ll help you find exactly what you’re looking for.