The winner, the ViscoSoft 3 Inch Memory Foam Mattress Topper, has a washable cover, a ventilated core to optimize airflow, and 3 inches of gel-infused memory foam.   The Viscosoft Select High Density Topper is our top pick because it features gel-infused memory foam and a ventilated design to promote airflow, distribute body heat, and help keep hot sleepers comfortable. The 3-inch, high-density memory foam also helps evenly distribute body weight to relieve pressure points and prevent you from sinking too far into the mattress. While it’s one of the thicker options on our list, this topper is great for side sleepers or those looking for an extra soft sleeping surface. Our tester especially liked this mattress pad’s machine-washable, breathable bamboo-rayon cover. The cover not only keeps your mattress topper fresh, clean, and odor-free, but also helps regulate temperature while you sleep. “After sleeping on it for a few nights, I can confirm that the mattress topper is excellent at regulating temperature,” our tester said. “I don’t have a problem with overheating while I sleep, but it does remain comfortably cool through the night.” One minor inconvenience: This mattress topper weighs over 30 pounds, which makes it rather difficult to maneuver on top of a bed, especially by yourself. However, this drawback can be expected when a topper is made of such high quality and dense memory foam. Our tester waited 24 hours after unrolling the topper to allow it to fully expand before placing it on top of her bed. The Viscosoft memory foam mattress topper is a great topper that provides exactly what it promises: comfort and support in the form of a breathable and washable topper. Price at time of publish: $150 The only downside is that it’s just 2 inches thick, whereas most mattress toppers are 3 or 4 inches thick. Linenspa does produce a 3-inch model, though, but it’s slightly more expensive. Price at time of publish: $60 Note that this topper can run a bit hot, so if you tend to overheat in your sleep, you might want to leave it to the colder months (or avoid it altogether). Price at time of publish: $400 Price at time of publish: $190 Price at time of publish: $100 But the topper’s best attribute is its cooling capabilities. Despite sitting beneath a two-inch layer of fiber-fill, the gel-infused memory foam still works wonders to keep you cool at night, no matter the temperature outside. Price at time of publish: $160 Just keep in mind this denser topper might feel a little hot, as there’s no cooling gel, so it’s better for cold sleepers or cooler climates. Price at time of publish: $129 Price at time of publish: $217 That said, if your doctor gives the go-ahead for your child to use a mattress topper, this is the one to buy. Its two inches of hypoallergenic memory foam are perfect for a smaller body, and it comes with a machine-washable waterproof cover to protect the topper against any accidents. Price at time of publish: $58

Thickness

The thickness of memory foam mattress toppers usually ranges from 1 inch to 4 inches. A 1- or 2-inch topper will most likely be thick enough to make your mattress more comfortable, allowing you to use the bed for a few more years before replacing it. Thicker mattress toppers are good for side sleepers or anyone who wants a plusher mattress feel. 

Size

Memory foam mattress toppers are sold in all standard bed sizes and designed to fit over your existing mattress, so you’ll want to choose the same size as your bed for the perfect fit. Some toppers also come in harder-to-fit sizes, like full XL and short queen. 

Standout Features

Cover

If you can, choose a mattress topper with a removable and washable cover. The covers are often breathable to help you stay comfortable throughout the night. Covers also help protect your mattress topper from getting dirty since most memory foam products are not washable.

Cooling

If you’re a hot sleeper, choose a ventilated memory foam mattress topper or one that’s infused with cooling gel—this will help you enjoy the supportive benefits of sleeping on memory foam with less chance of getting overheated during the night.

Third-party Certifications

When purchasing memory foam products, it’s helpful to look for options that have been third-party tested for consumer safety. For instance, you can opt for a memory foam mattress topper that is CertiPUR-US certified to be free of potentially harmful chemicals.

Why Trust The Spruce?

This article was edited and researched by Cristina Sanza, a lifestyle writer specializing in home products and organization hacks, and Stefanie Waldek, a design writer. To keep our product picks current and help you choose the right mattress topper, they read The Spruce reviews, customer reviews, third-party articles, and brand websites to determine the best memory foam mattress toppers on the market. To help protect your mattress topper, you can use a machine-washable cover. If your mattress topper is reversible, you can rotate and flip it to have it wear down more evenly. But every topper has its limits. “If the mattress topper seems saggy or deformed, flipping it won’t help. It may be time for a new one,” says Pagano. In addition to this research, Stefanie also consulted with two experts—Alex Savy, a certified sleep science coach and founder of SleepingOcean; and Robert Pagano, co-founder of Sleepline—to gain further insight on memory foam mattress pad maintenance and selection. Each model in this list provides both comfort and support, while some excel at special features like cooling or preventing motion transfer.