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    Best Cooling Mattress Toppers

    Lots of mattress pads are supposed to help you beat the heat, but some do a better job of keeping you cool than others

    overhead view of couple sleeping in bed with Sleepme ChiliSleep mattress cooling devices on each side of the bed
    Cooling mattress toppers like the Chilipad Cube (above) are designed to appeal to people who sleep hot.
    Photo: Sleepme

    If you have trouble getting a good night’s sleep because it’s too hot, you might consider a cooling mattress topper. Not to be confused with mattress toppers touting “cooling” gels or “cool to the touch” covers, cooling mattress toppers have hardware to push cool air or water through your bed. They’re a cross between bedding and bed equipment.

    In this article

    As with conventional mattress toppers, the cooling sort typically slips under a fitted sheet. Some of these toppers chill water before sending it through tubes in the pad to maintain a programmable temperature; others use a fan to blow air under the covers. They don’t seem to interfere with comfort.’

    “Most models have sufficient padding and are quite comfortable to sleep on,” says Bernie Deitrick, the CR engineer who tested the toppers. A few companies offer the option of a dual-zone design, so sleep partners can adjust their own side to their preference, whether cooler than the ambient room temperature or warmer.

    More on Bedding

    An added perk: These cooling mattress toppers will keep you from cranking up the air conditioner, too. That, in turn, can help reduce energy costs because you don’t have to cool your entire room to be comfortable. “Plus, bed coolers use less power than a typical AC unit,” Deitrick notes. (The same goes for heating costs during the winter if you use a mattress pad to warm your bed.)

    The thinking behind these toppers is this: Your core temperature naturally falls as bedtime approaches. To help promote sleep, a cooler environment can help.

    Of course, it’s also just common sense that if your mattress retains heat or if you experience night sweats, you’ll feel uncomfortable and have a hard time sleeping.

    The coldest mattress topper we tested can chill a bed down to a brisk 46° F. But it’s likely not necessary to go to such extremes. “You get the most deep sleep in a cool bedroom—not cold,” says Philip Richard Gehrman, PhD, a professor of clinical psychology at the Hospital of the University of Pennsylvania. “And what’s cool to one person is not cool to another person.” As a guideline, the American Sleep Association recommends an ambient temperature between 60° F and 68° F.

    To help you enjoy a more comfortable sleep, we tested three popular cooling mattress toppers and a cooling device that attaches to a bed. 

    CR members with digital access can read on for ratings and more detailed reviews. For additional information on making your bed comfortable, check our ratings and buying guides for mattresses, pillows, and sheets. And for the full slate of mattress toppers we’ve tested, go to our mattress topper ratings.

    To see all of CR’s sleep coverage, go to our Guide to Better Sleep.

    Best Cooling Mattress Toppers 

    There’s no such thing as a bargain when it comes to these mattress pads. The cheapest option isn’t worth the frustration, and the two most effective models—those that actively change the temperature of a bed as opposed to using a fan—start around $500.

    Become a member to read the full article and get access to digital ratings.

    We investigate, research, and test so you can choose with confidence.