Best cooling mattress toppers for hot sleepers

Key takeaways

• Two of these toppers move water, and five rely on materials. Orion and Sleepme pump water through a cover, while Saatva, TEMPUR-Pedic, Avocado, Frankenmuth, and ViscoSoft use foam, latex, wool, or special fabrics.

• The price gap is large. The material toppers list from $305 to about $700 for a Queen, and the water-based systems list from $1,699 for half a Queen bed to $2,998 for a two-sided Queen.

• Active toppers can move heat out of the bed. Passive toppers can absorb heat for a while but can’t carry it away, so active ones have the stronger case for cooling, though they cost more.

• Lab studies put a comfortable bed temperature at roughly 86 to 92°F. Orion’s 50 to 113°F is the water temperature, so the two numbers measure different things.

• Room temperature and bedding still count. A topper adds one layer to the bed.

Why active toppers have the stronger case

A passive topper can absorb heat for a while, but it has no way to carry that heat out of the bed, so the layer tends to warm toward your skin temperature as the night goes on. A water-based system keeps moving heat away and lets you choose a target temperature, so the surface doesn’t depend on how much warmth your body and the room put into it. Water also holds far more heat than air does, which is why bed cooling systems commonly circulate it. That’s the main reason active toppers have the stronger case for cooling, and the studies below fit it only loosely. They also cost more, as the prices below show.

How we picked these toppers

The list covers two active toppers that run a pump and five passive ones built from foam, latex, wool, or engineered fabric, all sold in the US with published sizes and list prices. The two water-based systems come first, since they work differently from the other five, and the passive toppers follow.

Prices are each maker’s regular list price for a Queen, as of November 2026, and specs come from each maker’s own page.

1. Orion Sleep System - Best overall

The Orion Sleep System is a water-cooled cover that fits over your mattress, with a Control Tower beside the bed that heats or cools water and pumps it through the cover. Each side can be set from 50°F to 113°F, which is the range of the water. One tower runs both sides from a single standard outlet.

The cover is a knit of polyester and bamboo, and Orion describes it as a thin layer that fits like a fitted sheet and doesn’t publish a thickness. Orion lists a Queen at $2,395, a King at $2,595, and a California King at $2,695. Orion says the cover fits mattresses 10 to 18 inches deep. The cover is spot clean only, and the tower needs its water topped off once or twice a year, with a purification tablet added. Orion Intelligence, an optional add-on, costs $250 a year, and temperature control works without it.

What works: One tower runs both sides at separate temperatures, and the temperature control doesn’t carry a subscription.

What doesn’t: It comes in Queen, King, and California King only, so Full and Twin beds are out. The cover can’t go in the washing machine.

Best for: Sleepers who want to set the bed’s temperature, alone or as a couple.

2. Sleepme Chilipad 2.0 - Best for starting with one side of the bed

The Sleepme Chilipad 2.0 also circulates water, through a membrane under a zip-off cover, with a dock beside the bed. Sleepme lists a temperature range of 55°F to 115°F and a mattress fit of 10 to 16 inches.

Sleepme sells it for one sleeper in Twin XL and in half sizes of Full, Queen, King, and California King, as well as in two-sleeper versions of the larger sizes. A one-sleeper Queen lists at $1,699, and a two-sleeper Queen lists at $2,998. A two-sleeper King lists at $3,198. The cover can be unzipped and machine washed, and Sleepme says there are no subscription fees.

What works: A half-size option lets one person start with their own side of a shared bed.

What doesn’t: One dock covers one side, so a couple needs the two-sleeper version at nearly twice the price. Setup calls for distilled water and a cleaner packet.

Best for: One sleeper in a shared bed, or anyone in a Twin XL.

3. Saatva Graphite Memory Foam Topper - Best for a low price

The Saatva Graphite Memory Foam Topper is a 3-inch topper of graphite-infused memory foam over polyurethane foam, with an organic cotton blend cover. Saatva says the graphite is there to improve breathability and comfort. The foams are CertiPUR-US certified.

It lists at $225 for a Twin, $275 for a Full, $305 for a Queen, and $355 for a King or California King, which is the lowest Queen price on this list. Elastic anchor bands hold it in place.

What works: It’s the least expensive topper here.

What doesn’t: The cover is spot clean only, and Saatva gives no figure for how much cooler the foam runs.

Best for: Anyone who wants a foam topper at the lowest price.

4. TEMPUR-Adapt + Cooling - Best for a foam topper with an optional cooling cover

The TEMPUR-Adapt + Cooling topper has a 3-inch core of TEMPUR-Material and, in the cooling version, a performance-fabric cover that TEMPUR-Pedic describes as cool to the touch. The Queen weighs 15 to 30 pounds, and the page says it fits mattresses up to 13 inches deep.

The Queen lists at $359, and the cooling cover adds $80, for $439. A King lists at $409 plus $100 for the cooling cover. TEMPUR-Pedic says to remove the cover and wash it cold, without chlorine, and to air dry it or use a cool dryer.

What works: The cooling cover is optional, so you can skip the $80 and buy the foam alone.

What doesn’t: TEMPUR-Pedic applies the cooling claim to the cover and not the foam, and the cover is a paid upgrade.

Best for: Shoppers who want TEMPUR-Material foam, with a cooling cover if they choose.

5. Avocado Eco Organic Latex Topper - Best for choosing firmness and organic certifications

The Avocado Eco Organic Latex Topper comes in two heights, 2 and 3 inches, and two feels, a medium Dunlop latex and a plush Talalay latex. The cover is GOTS-certified organic cotton, and the topper is vegan and wool-free.

Queen list prices run from $399 for the 2-inch medium to $699 for the 3-inch plush. Avocado says latex is naturally breathable and sleeps cooler than memory foam. The cover is sewn shut and can only be spot cleaned with a natural cleaner.

What works: Four Queen versions let you choose height and firmness, and the latex carries organic certifications.

What doesn’t: Latex is heavy, and the cover can’t be removed.

Best for: Shoppers who want to pick a firmness and want organic materials.

6. Frankenmuth Woolen Mill Wool Topper - Best for wool instead of foam

The Frankenmuth Woolen Mill Wool Topper is about 2.5 inches thick before it compresses, filled with 6 pounds of Climate Beneficial wool in a Queen and covered in certified organic cotton. It’s handmade in Michigan and comes in sizes from Twin to California King, with elastic corner straps.

A Queen lists at $410, and a King at $475. The maker says wool breathes and helps regulate temperature, because crimped fibers hold air and let moisture move away. The topper is hand washed in lukewarm water and line dried.

What works: It’s the one wool-filled option and has no foam in it.

What doesn’t: Care takes more work than a machine wash, and the maker calls the cushioning gentle.

Best for: People who want a natural fiber and a light layer of cushioning.

7. ViscoSoft Active Cooling Copper Topper - Best for copper-infused foam

The ViscoSoft Active Cooling Copper Topper is the thickest here at 4 inches, with 2 inches of copper-infused memory foam over 2 inches of high-density foam. The foam has ventilated channels. The cover is a washable woven fabric with phase-change yarns, and the foam is CertiPUR-US certified.

A Queen lists at $399.95, and a King or California King at $469.95. ViscoSoft says the copper draws heat away from the body and that the yarns respond to room temperature. The cover unzips for a machine wash, and the foam doesn’t wash. At 4 inches, it will likely need deep-pocket sheets.

What works: Ventilated channels run through the foam, and the cover has phase-change yarns woven in.

What doesn’t: The extra height raises the bed, and the cooling claims are the maker’s own.

Best for: Shoppers who want a copper-infused foam topper.

Active or passive, and what the research says

Water-based toppers change the temperature of the surface, while passive toppers are materials that sit between you and the mattress.

Passive toppers have the thinner evidence. A 2025 crossover study in the International Journal of Sports Physiology and Performance tested a high-heat-capacity topper on 14 elite badminton players for a week each. Core temperature dropped slightly, but sleep didn’t improve overall, though players who started with poorer sleep efficiency gained about 1.5 points. The sample was small. We found no peer-reviewed comparison of foam, latex, wool, graphite, copper, or phase-change toppers, so the cooling claims on the makers’ pages are unmeasured.

For active covers, a 2026 field study in Temperature gave 16 elite athletes a water-cooled cover for 14 nights and compared them with 16 who didn’t have one. The cover group reported about 29 more minutes of sleep. The groups weren’t randomly assigned, the outcomes were self-reported, and the authors called the results preliminary. The cover in that study was a different brand, so it says little about any single product.

The bed itself has a target. A 2025 study in the Journal of Thermal Biology of 14 adults and 14 children found comfortable bed temperatures of 31.0 to 33.2°C (about 88 to 92°F) for adults during sleep onset. A 2023 study of 12 adults put it at roughly 30 to 33°C (86 to 91°F). Both studies were small.

How to choose a cooling topper

Start with your budget, because the price gap decides the type. Passive toppers on this list cost $305 to about $700 for a Queen, while water-based systems start at $1,699 for half a bed and go to $2,998 for a two-sleeper Queen. The cheapest water-based option costs about $1,400 more than the cheapest topper here.

Next, match thickness to your sheets and mattress depth. The passive toppers run from 2 to 4 inches, TEMPUR-Pedic’s fits mattresses up to 13 inches deep, and Sleepme’s fits 10 to 16. Then check care. Some covers go in the washer, some are spot clean only, and Frankenmuth’s is hand washed, so read each care page.

Finally, think about the bed underneath. A topper sits on the mattress you already own and won’t fix one that’s sagging or holding heat. If the whole bed is the problem, our guide to how often to replace a mattress and our ranking of bed cooling systems cover the bigger moves.

What a topper can’t do

A topper doesn’t cool the room, and it can’t undo heavy bedding. The NHS says you may find it easier to sleep in a room that is quiet, dark, and cool, and suggests adjusting the temperature or opening a window if it’s safe. A 2024 manikin study in Scientific Reports found that combining passive strategies with air movement from a fan boosted cooling about 3 times compared with a fan alone.

Regular night sweats are worth raising with a doctor. Our guides to staying cool during hot flashes and cooling sheets cover related ground.

The short version

If you want to set the temperature of each side of the bed, Orion is the pick on this list, and Sleepme is the lower-cost way to start with one side. The two water-based toppers lead because they can move heat out of the bed while the passive ones can only absorb it, though they cost more. Among the materials, Saatva costs the least, Avocado offers the most choice of firmness, and Frankenmuth is the wool option.

Frequently asked questions

Does a cooling mattress topper actually keep you cooler?

In one small crossover study, a passive topper lowered core temperature slightly and didn’t improve sleep overall. The makers’ own cooling claims are the only evidence for most of the types here.

What temperature should my bed be?

Studies of bed microclimate put comfortable temperatures near 86 to 92°F in the bed. Orion’s 50 to 113°F range is the water temperature, so the two numbers aren’t directly comparable.

Do I need to cool the room as well?

The NHS suggests a cool room, and a manikin study found that pairing passive strategies such as bedding changes with a fan cooled about 3 times more than a fan alone.