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Home / Best Mattress Toppers of 2021 / Best King Mattress Toppers

Written by

Daniel Noyed


A king size mattress may be more comfortable for couples because it gives them extra room to spread out. But while sleepers may have the space they need to rest in their preferred position without disturbing their partners, that doesn’t mean the mattress itself will feel ideal to them.

When a mattress is too soft or too firm, a topper is a convenient solution. Most toppers are between 1 and 4 inches thick, with thicker options affecting the feel of the sleep surface to a greater extent than thinner models. This type of sleep accessory acts as an extra layer that sits on top of the mattress to change its feel, without the expense and hassle of buying a new mattress. Toppers can also help extend the life expectancy of a mattress by absorbing much of the surface-level wear and tear.

We’ll highlight our favorite picks for king size mattress toppers and explain what makes them stand out. We’ll also detail other factors to consider before selecting a topper for your bed.

The Best King Mattress Toppers

Product Details

Brooklyn Bedding Bamboo Talalay Latex Topper

Best Overall

Brooklyn Bedding Bamboo Talalay Latex Topper

Brooklyn Bedding Bamboo Talalay Latex Topper
Price: $354
Material: 3" Talalay latex
Firmness: Soft (3), Medium (5), Firm (7)
Who it's best for:
  • Sleepers looking for a topper with firmness options
  • Hot sleepers
  • Those who want to significantly change the feel of their mattress
  • Three firmness options
  • Premium latex conforms to the body without hugging too tightly
  • Silky-soft and breathable rayon from bamboo cover
Brooklyn Bedding Bamboo Talalay Latex Topper

Use this link for the most current discount on Brooklyn Bedding mattress toppers

The Bamboo Talalay Latex Topper from Brooklyn Bedding appeals to a wide range of sleepers thanks to its thoughtful design and multiple firmness options. The topper contains a 3-inch layer of natural Talalay latex, which cushions and conforms to the body much like memory foam but retains less body heat and doesn’t sink excessively. An OEKO-TEX Class 1 certification indicates the latex does not contain any harmful chemicals, and is suitable for all ages – even babies and toddlers.

Brooklyn Bedding offers three firmness levels for the topper. The soft (3) feel is best suited to side and back sleepers who weigh less than 130 pounds due to its close body contouring. Those who weigh more than 230 pounds – especially back and stomach sleepers – will likely prefer the firm (7) feel. Lastly, the medium (5) feel is essentially a balance of the other two and should serve most sleepers well, particularly those in the range of 130-230 pounds.

Hot sleepers may also enjoy the topper due to its excellent breathability and temperature control. The latex retains very little body heat compared to foam, while the cover is made of rayon from bamboo – a material renowned for exceptional cooling. The 3-inch profile also makes the topper a good option for anyone who wants to make a major adjustment to how their mattress feels.

Firmness selection does not affect price-point. Brooklyn Bedding offers the topper in eight sizes, including less common options like full XL and short queen for sleepers with non-traditional mattress dimensions. Your purchase comes with a 30-night sleep trial and a three-year warranty.

Viscosoft Reflex Gel Mattress Topper

Best Value

Viscosoft Reflex Gel Mattress Topper

Viscosoft Reflex Gel Mattress Topper
Price: $86
Material: 2-3" gel-infused memory foam
Firmness: 2": Medium (5) 3" Medium Soft (4)
Who it's best for:
  • Shoppers on a budget
  •  Those who want a choice of thicknesses
  •  Individuals looking for both bounce and motion isolation
  • Affordable price tag
  • Two thickness/firmness options
  • Close-conforming memory foam construction for exceptional pressure relief
Viscosoft Reflex Gel Mattress Topper

Use this link for the most current discount on Viscosoft mattress toppers

The ViscoSoft Reflex Gel Mattress Topper adds plush cradling to a mattress without being hard on the wallet.

This topper comes in two firmness options: 2 inches and 3 inches. The 2-inch model rates as a medium (5) firmness, while the 3-inch model has a medium soft (4) feel. The 2-inch model may be good for back and stomach sleepers who want a slightly more supportive sleep surface, while the 3-inch version provides more room for a side sleeper’s hips and shoulders to sink in. This contouring memory foam topper may be most appropriate for individuals who weigh under 230 pounds and feel their existing mattress is too firm.

The Reflex Gel Mattress Topper’s memory foam is specially engineered to be more responsive than traditional memory foam. It hugs the body to help relieve pressure but returns to its original shape relatively quickly when weight is removed. This gives it a slight bounce that may be more conducive to sex than most memory foam toppers. The gel infusion is intended to pull heat away from the body to help reduce the heat buildup often caused by memory foam’s close conforming. That said, the topper may still sleep warm for some.

If you decide the Reflex Gel Mattress Topper isn’t right for you, you can return it within 60 days for a full refund of the purchase price. ViscoSoft also provides a 3-year limited warranty that offers repairs or replacements should eligible defects arise.

Saatva Mattress Topper

Best Luxury

Saatva Mattress Topper

Saatva Mattress Topper
Price: $330
Material: Graphite-infused memory foam, ventilated Talalay latex, or high-density polyfoam
Firmness: Medium Soft (4) or Medium (5)
Who it's best for:
  • Sleepers who aren’t sure which topper material is best for them
  • Hot sleepers
  • People who regularly toss and turn
  • Three topper models with different materials and overall feels
  • All toppers encased in a cover of breathable organic cotton
  • Stretchy corner bands prevent shifting and slipping
Saatva Mattress Topper

Use this link for the most current discount on Saatva mattress toppers

Saatva offers three mattress toppers to choose from, each one composed of a different material that caters to certain types of sleepers based on factors like body type and sleep position.

The “Foam” topper carries the lowest price-point and has the firmest feel of the three, which rates as medium or 5 on the 1-10 firmness scale. This one consists of a single high-density polyfoam layer measuring 1.5 inches thick. The foam conforms closely and evenly to improve alignment and reduce pressure, but its relatively thin profile won’t affect the feel of your mattress too much.

With a 3-inch profile, the “Graphite” topper is the thickest option. This model contains a top layer of memory foam infused with cooling graphite, followed by a second layer of high-density foam that serves as a supportive base. The feel is medium soft (4) and the foam layers conform very closely, so side sleepers weighing 230 pounds or less should find the topper particularly comfortable.

The “Latex” topper has a medium soft (4) feel and a 1.5-inch profile, so it can be seen as a compromise of the two foam models. The Talalay latex that forms this topper’s single layer is ventilated with small holes to push air to the surface and keep you cool, so hot sleepers should also be satisfied.

All three toppers include covers made of breathable organic cotton that wicks away moisture and elastic corner bands for keeping the topper in place. Saatva provides free ground shipping anywhere in the contiguous U.S., and you’ll receive a 45-night sleep trial and one-year warranty with your purchase.

Latex for Less Topper

Best Pressure Relief

Latex for Less Topper

Latex for Less Topper
Price: $339
Mattress Type: 2-3" Ventilated Talaylay Latex
Material: Soft (3), Medium (5), Medium Firm (6)
Who it's best for:
  • Shoppers with strong firmness or thickness preferences
  • People who prefer a responsive sleep surface
  • Those who value sustainable materials
  • Three firmness and two thickness selections to meet different needs
  • Buoyant Talalay latex construction
  • Isolates motion well without hindering movement
Latex for Less Topper

Use this link for the most current discount on Latex for Less mattress toppers

Constructed with natural, durable latex, the Latex for Less Topper has all the benefits of the popular material while giving customers plenty of options to customize their king beds.

Natural Talalay latex makes up this topper. Talalay latex is buoyant, airy, and supportive. While latex is generally more breathable than memory foam on its own, the Latex for Less Topper is ventilated to further enhance air circulation. This material shapes to the body to relieve pressure, but it spreads the compression over a wider area. Many sleepers compare this to a floating sensation rather than a hug.

Shoppers can select between three firmness options: soft (3), medium (5), and medium firm (6). Which feel is right for you will depend on your weight, sleep position, existing mattress, and personal preferences. In general, individuals who weigh more than 230 pounds and those with a mattress that’s too soft are likely to prefer the medium firm. Sleepers who weigh under 230 pounds and those who have a mattress that’s too firm may gravitate towards the softer options.

The Latex for Less Topper also comes in two thicknesses: 2 inches and 3 inches. The thickness you select will determine how significantly the topper alters the feel of your sleep surface.

Those who purchase the best firmness and thickness for them should feel cradled and supported regardless of their sleep positions. All firmness and thickness options also earn high marks in durability, temperature regulation, noise level, and support. The topper’s springiness should make it responsive enough for sex. While this bounce could lead to some vibrations traveling across the surface, these shouldn’t contribute to major disruptions for most sleepers.

The Latex for Less Topper holds OEKO-TEX certification for safety standards. Buyers can add an organic cotton cover for an additional fee. The topper comes with a 5-year limited warranty that protects against defects like cracking, splitting, and indentations.

PandaZzz Double Quilted Topper

Best Memory Foam

PandaZzz Double Quilted Topper

PandaZzz Double Quilted Topper
Price: $149
Material: Memory foam
Firmness: Medium (5)
Who it's best for:
  • Side and back sleepers
  • Couples
  • Shoppers looking for a topper with a longer-than-average trial period
  • Close contouring and pressure relief from two memory foam layers
  • Bottom cover has anti-slip surface to keep the topper in place
  • 100-night sleep trial
PandaZzz Double Quilted Topper

Use this link for the most current discount on PandaZzz mattress toppers

The PandaZzz Double Quilted Topper checks a lot of boxes for sleepers who enjoy the feel of memory foam. The top layer is thin and soft for a contouring, cloud-like feel reinforced by a thicker base layer that brings the profile up to 3 inches thick. The second layer is also perforated with holes to reduce heat retention and help the topper stay cool, so people who normally find memory foam surfaces too warm should find this one more comfortable by comparison.

The cover is composed of premium, quilted jacquard fabric that gives the surface a luxuriously plush feel. The fabric is also fairly breathable for added temperature control. The bottom cover features small grooves that provide traction, so the topper shouldn’t shift or slip around even when you toss and turn.

Both foam layers absorb movement quite well, reducing motion transfer in the process. This means any light sleeper with a mattress that feels excessively bouncy can cut down on nighttime disruptions stemming from their partner’s movements. Like other memory foam toppers, this model also excels at pressure relief.

An approachable price-point and free shipping throughout the contiguous U.S. make the Double Quilted Topper a high-value pick for shoppers on a budget. The sleep trial – which spans 100 nights – is fairly long for a topper, and PandaZzz also backs this product with a one-year warranty against structural defects.

Lift by Amerisleep Mattress Topper

Most Comfortable

Lift by Amerisleep Mattress Topper

Lift by Amerisleep Mattress Topper
Price: $299
Material: Bio-Pur memory foam, HD polyfoam
Firmness: Medium Soft (Comfort) Medium Firm (Support)
Who it's best for:
  • Sleepers whose ideal feel is either medium soft or medium firm
  • Couples
  • Those who want to invest in a long-lasting memory foam topper
  • Proprietary Bio-Pur memory foam is dense and durable
  • Breathable cover helps the topper sleep relatively cool
  • Two firmness options
Lift by Amerisleep Mattress Topper

Use this link for the most current discount on Amerisleep mattress toppers

Amerisleep’s signature Bio-Pur memory foam – found in most of the brand’s mattresses – has earned a reputation for even contouring and above-average longevity. The Lift topper uses this same material, creating a surface that cushions the body, alleviates pressure, and holds up well over time. High-density base foam forms the base layer to support your body and prevent excessive sinkage.

A 3-inch profile means your sleep surface should feel quite different with the topper in place, making it a good option for people with lumpy or indented mattresses. You can choose from two firmness levels for your Lift. The medium soft (4) feel offers the closest conforming and is particularly well suited to side sleepers who weigh 230 pounds or less. The medium firm (6) topper contours less and provides more support, so back and stomach sleepers who weigh at least 130 pounds may prefer this one instead.

The cover is made of breathable fabric that promotes airflow and offsets some of the foam’s heat-absorbing properties. This makes the Lift an appealing option for people who normally find memory foam toppers too hot. The base cover has an anti-slip surface to keep the topper in place and prevent shifting while you sleep.

Amerisleep offers free standard shipping to all customers in the contiguous U.S. While all sales are final and the brand does not accept returns, you’ll receive a warranty with your purchase that covers structural defects in the topper for up to five years.

PlushBeds Memory Foam Topper

Best Cooling

PlushBeds Memory Foam Topper

PlushBeds Memory Foam Topper
Price: $326
Material: 2-3" gel memory foam
Firmness: Medium (5)
Who it's best for:
  • Those prone to sleeping hot on memory foam
  •  Sleepers with pressure point discomfort
  •  Allergy sufferers
  • Open-cell memory foam engineered to provide hug with less heat retention
  • Infused with gel designed to dissipate body heat
  • Optional cotton cover wicks moisture and allows airflow
PlushBeds Memory Foam Topper

Use this link for the most current discount on PlushBeds mattress toppers

Sleepers often appreciate the close hug of memory foam but not the resulting heat retention. The PlushBeds Cooling Gel Memory Foam Topper sets itself apart with specially engineered materials that help transfer heat away rather than trapping it against the body.

Thanks to the open-cell structure of its memory foam, air circulates more freely to help disperse heat and evaporate moisture. It is also infused with gel beads, which can help draw heat away from the sleeper’s body. Like traditional memory foam, this material cradles the body for exceptional pressure relief, but its close hug shouldn’t retain a lot of heat.

An organic cotton cover is available for an additional charge. This can add to the breathability and moisture-wicking properties while making it easier to freshen up the surface.

PlushBeds produces 2- and 3-inch versions of the Cooling Gel Memory Foam Topper. The 2-inch version may be a perfect match for those looking for a bit of pressure relief, while the 3-inch version may be better for side sleepers and those with a mattress that’s too firm. The medium feel should accommodate all sleep positions, but the 3-inch version may not be supportive enough for stomach sleepers who weigh over 230 pounds.

The PlushBeds Cooling Gel Memory Foam Topper is hypoallergenic and designed to be resistant to mold, mildew, and microbial growth. It is CertiPUR-US certified, which means it passed independent testing for potentially harmful components. A 5-year limited warranty is provided with purchase.

How to Choose a King Size Mattress Topper

Choosing the best king size topper requires careful consideration, especially if you are trying to please both yourself and your partner. Since a topper changes the feel of the sleep surface, you may want to put as much thought into finding your perfect match as you would when selecting a new mattress. Focusing on key factors related to construction, performance, and value can help you narrow down your search.

What to Consider When Purchasing a King Mattress Topper

There are plenty of criteria to take into account when purchasing a king mattress topper. Companies are in the business of selling, so some may try to appeal to the broadest customer base possible. Often, they make it seem like their toppers are comfortable for everyone regardless of their sleep position, weight group, existing mattress, and personal preferences. In reality, needs and preferences vary, so focusing on specific aspects may help you to find a topper that’s closer to your ideal match.

King mattress toppers vary widely in price due to differences in materials, quality, and construction. Convoluted polyfoam toppers and fiber toppers are usually the most affordable, frequently costing less than $50. Memory foam, high-density polyfoam, feather, and latex options usually cost a bit more, ranging from around $100 to $700. Down toppers generally cost the most on average, starting at around $200 and reaching over $3,000.

Sleeping Position
A sleeper’s spinal alignment and the location and intensity of their pressure points depend largely on their sleep position. The right topper can make the sleep surface more supportive and pressure-relieving for your chosen position.

For instance, side sleepers may prefer a softer and thicker topper, since it will leave more room for their hips and shoulders to sink in without pressing against their mattress. Back sleepers and stomach sleepers often prefer firmer, thinner toppers for gentle contouring without significant midsection sinkage that could jeopardize their spinal alignment.

Quality Materials
The quality of the materials is one of the most important factors in determining a topper’s durability. High-quality materials typically resist indentations, sagging, and cracking so that you can continue to use your topper comfortably for years to come. While a topper made of quality materials will likely carry a higher sticker price, it may cost less over its lifespan than lower-quality options that require frequent replacement.

Cooling Properties
Sleeping hot is a common issue. Many toppers address this concern with special cooling features that allow heat to escape, wick away moisture, and/or make the surface feel cool to the touch. Pairing a cooling topper with a mattress that tends to retain heat may make the bed more comfortable for hot sleepers.

Firmness Level
Firmness preferences are subject to several factors, but some people tend to prefer certain firmnesses based on their body types. Most sleepers will likely find a medium to medium firm topper comfortable, especially if they weigh between 130 and 230 pounds. However, individuals who weigh under 130 pounds usually prefer a soft or medium soft option for more hug, while those who weigh more than 230 pounds frequently favor a medium firm to firm topper for more support.

Which topper firmness is ideal for you may also depend on the feel of your existing mattress. If your mattress is too firm, you may prefer a softer topper than what is most popular for your weight group. However, if it is too soft, a firm topper may be a better option.

The thickness of the topper directly affects how much it changes the feel of the sleep surface. Most toppers range between 1 inch and 4 inches thick, with the thinner options providing a slight adjustment and the thicker models giving your bed a more significant transformation. How much you like the feel of your existing mattress and what sleep position you prefer may influence which thickness is best for you.

Pressure Relief
Many sleepers seek out toppers primarily for added pressure relief, especially if their existing mattress is too firm. Materials like memory foam, polyfoam, and latex redistribute a sleeper’s body weight to reduce pressure buildup around wider areas, like the hips and shoulders.

The thickness and firmness of a topper can contribute to the level of pressure relief an individual experiences. Thicker toppers traditionally have more pressure relief than thinner models since they have extra depth to cradle a sleeper’s curves. A firmness that corresponds to your body weight (softer for individuals under 130 pounds and firmer for those over 230 pounds) should give most sleepers the best combination of pressure relief and support.

Which Type of Mattress Topper Should I Choose?

There isn’t one right answer as to which variety of mattress topper you should choose. Each type carries potential benefits and drawbacks that may make them ideal for some individuals and uncomfortable for others.

To select the best variety of mattress topper for you, you should assess your priorities, preferences, sleep position, and existing mattress. Knowing more about the different types of toppers may also make the decision easier.

Polyfoam toppers, especially those with convoluted foam, tend to be some of the most affordable options on the market. These toppers typically regain their shape more quickly and allow more airflow than memory foam, while also contouring to the sleeper’s body for pressure relief and support. However, lower-density, lower-quality polyfoam toppers may wear out faster than other types of toppers.

Memory foam
Memory foam conforms closely to the sleeper’s body, thereby distributing their body weight and relieving pressure. Since memory foam toppers tend to regain their shape relatively slowly when pressure is removed, they absorb a significant amount of motion but have little to no bounce. Toppers made of traditional memory foam are prone to heat retention, but some models use gel infusions or phase change material in the cover intended to help transfer away excess warmth.

Latex toppers may use natural, synthetic, and/or blended latex, though natural latex tends to be most popular because of its sustainability. To create natural latex, sap from rubber trees is formulated using either the Talalay or Dunlop process, both of which create a durable, breathable, and buoyant material. Latex toppers redistribute weight to relieve pressure, but the material’s low point elasticity provides more of a floating sensation than a full-body hug.

Feather and Down 
Feather and down toppers, sometimes called featherbeds, typically use duck and/or goose feathers, down, or a combination of the two. Down is the plush inner plumage of a bird, which gives toppers a fluffy, light feel, but also carries a higher price tag. Feather toppers are usually more supportive and less expensive. While both feather and down toppers can feel luxurious, they do not typically provide the same level of pressure relief as foam. They may also allow more motion transfer, make a rustling noise, emit an odor, and/or trigger allergy symptoms.

Wool toppers cushion the sleep surface without the same contouring as foam. Perhaps the biggest benefit of wool toppers is their temperature regulation. Wool insulates when it’s cold, draws heat away when it’s warm, and wicks away moisture, allowing for all-season usage.

Frequently Asked Questions About King Mattress Toppers

Should I use one king topper or two twin XL toppers?

Using two twin XL toppers instead of one king topper may be a good option for some couples, but it also has potential drawbacks. It’s beneficial in that each partner can select their ideal firmness rather than trying to find a compromise. Additionally, since the toppers are two separate pieces, motion transfer should be minimal.

But using two twin XL toppers is not without drawbacks. If you or your partner gravitate toward the center of the bed, you may feel the line where the two pieces meet, which may be uncomfortable. Some toppers are anchored in place with corner straps. When used in place of a king topper, two of the straps on each twin XL topper would not have a corner to hold it in place, so they may move around more. If either component shifts during the night, it could create a gap in the center of the bed.

How much do king mattress toppers cost?

King toppers usually cost between $100 and $400, but options are available for most budgets. Affordable options start at just $20, while luxury models can cost over $3,000. Price is often determined by the brand, construction, and materials.

What is the difference between king and California king?

There are important differences between king and California king sizes, which shoppers should consider before making a purchase. A king size is wider, while a California king size is longer. More specifically, a king typically measures 76 inches by 80 inches, compared to a California king’s 72 inches by 84 inches. If you want to have more room to roll over or change positions without disturbing your partner, you may prefer a king size. However, if you or your partner is especially tall, a California king may be more comfortable.

How do you clean a mattress topper?

To avoid damage, mattress toppers should only be cleaned following the manufacturer’s care instructions. Each topper may have different instructions based on its materials. Those that contain memory foam, polyfoam, or latex cannot be washed but can usually be spot cleaned if necessary. Some also have removable, washable covers. Select fiber, wool, feather, and down toppers may be machine-washable depending on their constructions. Using a waterproof mattress protector over your bed can also help prevent dirt and stains.