Buy more, save more. Get up to $450 off!
Sleepfoundation.org is reader-supported. We may earn a commission through products purchased using links on this page. Learn more about our process here
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.
Buy more, save more. Get up to $450 off!
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.
Use this SleepFoundation.org link for the most current discount on Brooklyn Bedding mattress toppers
Brooklyn Bedding offers several high-quality mattress toppers and the Gel Swirl Memory Foam Topper is the most budget-friendly option. Composed of solid memory foam with a cooling gel infusion, the topper contours closely to cradle the spine, improve alignment, and evenly distribute your weight. The foam cushions the shoulders and hips to alleviate pressure for side sleepers, while back sleepers can rest comfortably without sinking too much – especially if they weigh 230 pounds or less.
Shoppers can choose from two thickness options for their topper. Models with 2-inch profiles have medium (5) feels, and are a good match for mattresses that have developed slight indentations or soft spots over time, but do not yet need to be replaced. The medium soft (4) 3-inch topper changes the feel of your sleep surface to a significant extent and is best suited to mattresses nearing the end of their lifespan. There is a price difference between the profiles, but all king size options are still reasonably priced.
The foam has a low density that makes the material breathable and the cooling gel is intended to disperse body heat, so this topper shouldn’t sleep too warm. Another strength is motion isolation. If you and your partner share a bouncy mattress that produces transfer when one person moves in bed, the topper can effectively absorb motion and prevent those ripples of movement across the surface.
The topper does not come with a cover and the foam should only be spot-cleaned as needed, so you may want to invest in a cover or protector to keep your sleep space hygienic. Brooklyn Bedding ships free of charge to customers in the contiguous U.S. Each topper comes with a 30-night trial period and a 3-year full replacement warranty against structural defects.
Use this SleepFoundation.org link for the most current discount on Tempur-Pedic mattress toppers
People who experience pressure point discomfort can often benefit from adding a contouring topper to their current mattress. The TEMPUR-Topper Supreme from Tempur-Pedic is a 3-inch memory foam topper that provides substantial cushioning. The TEMPUR foam material compresses under your body weight, contouring closely to its shape. This model’s medium feel is best suited to side and back sleepers, as it may sink too deeply for stomach sleepers.
This topper is also an excellent pick for couples, especially those who toss and turn. When placed on top of your existing mattress, the memory foam works to isolate any motion you produce, stopping disturbances from reaching your partner’s side of the bed. In addition to movement, memory foam also absorbs heat. However, adding this topper is unlikely to significantly change your mattress’ overall temperature regulation.
Each topper comes with a removable and washable cover that helps protect the memory foam. Our in-house testing found that this model is likely to last, though it’s also covered by a 10-year warranty. Tempur-Pedic ships its TEMPUR-Topper Supreme for free to customers in the contiguous U.S.
Best for Back Pain
Use this SleepFoundation.org link for the most current discount on PlushBeds mattress toppers
The PlushBeds Natural Latex Topper has a responsive feel and multiple firmnesses to support healthy spinal alignment for a wide range of people. Most sleepers may find an option that suits their needs regardless of body size, sleeping position, or preferences.
The airy Talalay latex in the PlushBeds topper provides pressure relief without excessive sinkage. The limited sinkage also traps less heat, and latex is naturally breathable. Hot sleepers may find they keep cooler on a latex topper. Latex is often a top choice for couples as well, since the material provides decent responsiveness for sex.
The wide range of thickness and firmness options ensures pressure relief and adequate support for most types of sleepers. Sleepers under 130 pounds may feel most comfortable on athicker 3-inch topper with a soft (3) or medium soft (4) feel, both of which provide more pressure relief while supporting hips and shoulders to align the spine. The medium (5) and medium firm (6) options are better suited to sleepers who weigh 130 to 230 pounds. Those weighing more than 230 pounds may prefer the extra firm (8) feel to prevent excess sinkage – especially if they sleep on their backs or stomachs.
PlushBeds offers free shipping to the contiguous U.S.. The company also provides a 5-year warranty with purchases, but returns are not permitted.
Best for Side Sleepers
Use this SleepFoundation.org link for the most current discount on Silk & Snow mattress toppers
The Silk & Snow Organic Mattress Topper is a latex topper that offers an even balance of cushioning and support. It’s a good fit for side sleepers seeking a topper that cradles the shoulders and hips while supporting the lower back area.
The topper measures 2 inches thick and is composed of GOLS-certified organic Dunlop latex encased in a GOTS-certified organic cotton cover. Shoppers can pick between two firmness options, medium (5) and firm (7). The medium feel offers closer contouring and excels at pressure relief, while the firm is better suited for those who need stronger support. Regardless of the firmness level you choose, the latex has a bouncy feel that moderately cushions your body.
Between the two firmness options, most sleepers should find a topper that suits their needs. Side sleepers may prefer the medium topper, since the firmer option may cause excessive pressure buildup in the shoulders and hips, while back and stomach sleepers might gravitate toward the firm option. Hot sleepers will sleep comfortably on this topper, due to the natural breathability of latex.
Silk & Snow offers free shipping to locations in the contiguous U.S. and all Canadian provinces. The topper comes with a 100-night sleep trial as well as a 3-year warranty for the latex component and 1-year warranty for the cover.
Use this SleepFoundation.org link for the most current discount on Birch mattress toppers
The Birch Organic Mattress Topper is constructed using eco-friendly materials. Solid Talalay latex forms the core for a balance of cushioning and responsiveness, which may be more comfortable for those who dislike the deep body hug of memory foam. The cover is composed of organic cotton, and two layers of organic wool batting provide extra padding beneath the surface. These components are not only sustainably sourced but also exceptionally durable, giving the topper a longer-than-average lifespan.
Measuring 3 inches thick with a medium (5) feel, the topper is best suited to older mattresses with deep impressions. The thick profile coupled with deep cushioning should improve the comfort level of your mattress by a significant extent. Hot sleepers can also benefit from using this topper. The latex is ventilated to promote steady air circulation throughout the interior, the organic cotton is very breathable, and the wool has moisture-wicking properties to keep you dry and comfortable on humid nights.
Customers in all 50 states qualify for free ground shipping when they order the Birch Organic Mattress Topper. Purchases also include a 100-night sleep trial, and those who choose to keep their topper receive a 10-year warranty against structural defects.
SF readers get 25% off
Memory foam is not particularly known for sleeping cool. The foam has a tendency to absorb and trap body heat, making the material potentially problematic for hot sleepers. The GhostBed Memory Foam Topper mitigates this issue thanks to intricate channels cut that allow air to flow freely across the surface. For added breathability, the foam is infused with gel and the removable cover is made of cool-to-the-touch Ghost Ice Fabric.
Measuring 3 inches thick, the topper will noticeably adjust the feel of your mattress and is particularly well suited to people whose beds have grown saggy or uneven over time. The foam is divided into five different firmness zones, creating more support around the midsection where people tend to carry more weight and a softer feel for lighter areas of the body.
The topper’s cover is another notable feature because it encases the mattress and fits snugly around the corners of your mattress, removing the need for a fitted sheet. The pocket depth is 18 inches, so the cover will work with most mattresses sold today. Unlike other topper covers, this one is also waterproof. This makes the topper a good option for children who wet the bed.
GhostBed provides free ground shipping anywhere in the contiguous U.S. The company does not permit returns for the topper, so your order won’t come with any sort of trial period, but the purchase is backed by a 5-year manufacturer’s warranty.
Best Pressure Relief
SF customers receive 25% off + free shipping
Long-lasting toppers with approachable price-points can be hard to come by, but the ViscoSoft Select High Density Mattress Topper manages to be both durable and affordable. Composed of high-density memory foam – a material that often withstands sagging and shape loss over time – the topper offers a 3-inch profile and medium (5) feel with close body-contouring. This design should lead to major comfort adjustments if your mattress is exceptionally saggy or uneven.
The foam provides plush cushioning for the shoulders and hips, which can improve alignment issues and reduce pain for side sleepers, but the dense composition also allows the topper to support back sleepers without sinking around the midsection. Since the foam absorbs motion very well, the topper may also be a good option for couples – especially if their mattress has a responsive surface that disrupts sleep.
The topper is encased in a cover made of breathable rayon derived from bamboo, which has cooling properties and a luxuriously soft hand-feel. The cover’s anti-slip bottom creates traction on your mattress surface, and each corner has an elastic strap for securing the topper to your mattress. Thanks to these features, combination sleepers who constantly change positions and people who toss and turn won’t need to worry about the topper shifting or sliding too much.
In addition to standard models, customers can choose from two special versions of this topper. One design is infused with active charcoal intended to boost the topper’s breathability and also add an extra measure of antimicrobial protection. The other is treated with lavender, which many people use as a relaxant to promote sleepiness leading up to bedtime.
Ground shipping is free of charge for all orders in the contiguous U.S. ViscoSoft backs the Select High Density Mattress Topper with a 60-night trial and return period, as well as a 5-year warranty against material defects.
Use this SleepFoundation.org link for the most current discount on Quince mattress toppers
Most toppers are relatively soft by design, but the Premium Down Alternative Mattress Topper from Quince offers an exceptionally plush feel for people who enjoy the sensation of sleeping on a cloud-like surface. The fill consists of down alternative clusters that provide the same level of insulation as real down without using animal-based materials or triggering symptoms for those with down allergies. Baffle boxes measuring 3 inches thick accentuate the lofty feel and make the topper well-suited to mattresses with deep indentations or impressions.
The shell is made of pure cotton with a twill weave, so the fabric is both silky-smooth and long-lasting. Two sizes are available, including a king/California king option that is compatible with both of these mattress sizes. The topper is machine-washable, though you may want to launder it in a commercial washer or have it dry-cleaned if your home appliances are not large enough.
Quince’s 365-night sleep trial is very long compared to the trial periods for other topper brands. You may use and wash the topper during this time and return it for a full refund if you are not satisfied. Standard ground shipping is free of charge for all orders.
Best for Hip Pain
Use this SleepFoundation.org link for the most current discount on Layla mattress toppers
Side sleepers can benefit from a mattress topper that cushions the shoulders and hips – two areas where people who use this position are susceptible to pressure buildup. The Layla Memory Foam Topper is exceptionally plush with a soft (3) feel and a solid foam core that contours closely to the body. Measuring 2 inches thick, the topper should improve the comfort level of any mattress with light to moderate wear and tear.
The foam is infused with copper and cooling gel, both of which are intended to reduce overheating and prevent you from feeling uncomfortably warm. Another temperature-regulating component is the cover made from a stretchy blend of polyester and viscose with a proprietary ThermoGEL agent. The cover can be removed and machine washed for quick and easy care.
Layla offers free ground shipping for all customers in the contiguous U.S. Each order includes a 120-night sleep trial, ensuring ample time to test out the Memory Foam Topper and decide whether it’s right for you. Those who choose to keep their purchase also receive a 5-year warranty against structural defects.
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.
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.
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.
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 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.
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.
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 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.
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.
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.
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.
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.
The Sleep Foundation editorial team is dedicated to providing content that meets the highest standards for accuracy and objectivity. Our editors and medical experts rigorously evaluate every article and guide to ensure the information is factual, up-to-date, and free of bias.
The Sleep Foundation fact-checking guidelines are as follows:
At Sleep Foundation, we personally test every product featured in our reviews and guides. This hands-on approach allows us to provide accurate, data-driven recommendations for mattresses, pillows, sheets, and other sleep essentials.
Guidelines for our testing methodology are as follows: