Over the last five years, we’ve spent hours researching and testing mattresses, evaluating quality, comfort, materials, and overall value. Our top pick for most sleepers is the Casper Original Mattress, a breathable, sink- and sag-resistant mattress that provides targeted spinal support.  Here are the best memory foam mattresses. What do buyers say? 49,500+ Wayfair reviewers rated this product 4 stars or above. Over the years, Casper has become one of the best-known and reputable brands in the bedding industry. And anyone who tries the Casper Original Mattress will understand why. This memory foam mattress features three layers: a supportive base layer designed to prevent sinking and sagging; a middle layer of memory foam with three ergonomic zones to align the spine and relieve pressure; and a top layer of perforated breathable foam that reduces heat and promotes airflow. The mattress comes in a compact box for easy delivery and is ultra-simple to set up, too. Once you take it out of its box, it expands and is ready to sleep on within minutes. While some say the mattress emits a strong odor that lingers for a bit too long afterwards (sometimes for months!), most rave about the super-soft, body-hugging comfort. And if you don’t like it, you’re in luck. Casper not only offers a 100-night trial complete with a full refund if you don’t like it, but it also includes a 10-year warranty, should anything go wrong. Price at time of publish: $1,165 for a Queen size The six-layer mattress couldn’t be more comfortable. It’s made with pressure-relieving memory foam and high-density foam layers that will win you over, thanks to the contouring support. It also has a layer of breathable, gel-infused foam, so sleepers will stay cool even on the hottest nights. What’s more, the quilted organic cotton cover features a botanical antimicrobial treatment to help your mattress stay nice and clean throughout the years. Also nice: The foam is CertiPUR-US certified, meaning it’s free from harsh chemicals. Price at time of publish: $1,932 for a Queen size All you get is the good stuff, including a 4-inch layer of memory foam and eight inches of high-density foam for a total of 12 inches of glorious support. While you sleep, the mattress has just enough give to mold to your body’s natural shape, minimizing pressure and distributing weight as evenly as possible. It’s worth noting that it’s a little bit firmer than other options, so it’s most ideal for back and stomach sleepers.  And while this memory foam mattress does come with a soft, breathable cover, it comes in limited bed sizes—you’ll have to look elsewhere if you need a split or have a California king.  Price at time of publish: $418 for a Queen size Despite this cooling effect, the Leesa doesn’t sacrifice whole-body comfort in any way. The mattress actually adapts to your specific body type, providing enhanced pressure relief that’s perfect for athletes or anyone who suffers from muscle tension or even pain.  Overall, this mattress is a good choice for most sleepers, though stomach sleepers in particular may find the ultra-plush sleep surface a bit too soft, since it can create bowing in the back that eventually leads to back pain.  A bonus worth noting: The company donates one mattress for every 10 sold. “In our experience, back sleepers found it more comfortable than stomach or side sleepers—the latter who generally need softer support around the curve of their hips and shoulders. However, our lone stomach sleeper thought it did prevent their back from bowing, which often happens with memory foam mattresses."—Stacey L. Nash, Product Tester Price at time of publish: $1,099 for a Queen size It’s made well, too. It’s constructed of memory foam that’s infused with an effective cooling gel complete with evenly spaced ventilation channels that excel at improving airflow and regulating temperature. The result: Sleepers who run hot will stay cooler, and therefore more comfortable, at night. And though it’s relatively plush, this topper is also proven to help some sleepers—particularly back sleepers—rest pain-free, since the foam aligns the spine by supporting the natural curves of the head, neck, and shoulders. Price at time of publish: $125 for a Queen size Like other great mattresses, it’s also constructed of a special adaptive foam that has cooling properties, thanks to materials like gel and graphite. Of course, you’ll have to try it for yourself—and you can, thanks to a 100-night sleep trial and a 10-year limited warranty. Just don’t make any rash decisions. Since this mattress comes wrapped up in a box, it can take up to 72 hours for it to fully expand and for any potential odors to go away.  Price at time of publish: $995 for a Queen size The mattress is also a good choice for anyone who experiences neck, back, or hip pain, since it’s adept at adjusting to the various pressure points in your body. This is all thanks to a base layer of foam that provides deep, structural support and spine alignment.  Some users say the sizing is ever-so-slightly off, leaving small gaps between the bed frame and the mattress. If you can get past that, you’ll love the feel of the mattress, plus nice bonuses like a naturally hypoallergenic removable cover. Price at time of publish: $450 for a Queen size The foam is also CertiPUR-US Certified and infused with green tea extract and castor seed oil to help stave off bacteria and unseemly odors. Considering this and its ability to reduce pain, keeping you more comfortable at night, this mattress offers an exceptional value. Just make sure a firmer memory foam mattress is what you’re really after; otherwise, you may find it a bit too hard.  Price at time of publish: $341 for a 12-inch Queen size The Luxe Hybrid mattress is also expertly designed to feel cool to the touch, so hot sleepers will be more comfortable throughout the night. What’s more, the mattress is CertiPUR-US certified—it’s entirely free of harmful chemicals like lead, mercury, and phthalates. Allswell also offers a 100-night risk-free trial and a 10-year warranty to help you feel extra-confident in your purchase.  Price at time of publish: $549 for a Queen size The bed is available in a wide range of sizes, and you can customize the whole thing from start to finish. Once you select a size, move on to a base option (or opt for mattress only, if you prefer!), then add extras like a protection pad or a set of cooling sheets.  The mattress itself is fully adjustable, too. In fact, thanks to the integrated technology, it responds to your movements and automatically adjusts firmness on each side—great for couples sharing a mattress. Through the compatible smartphone app, you can even get sleep data the next day, so you can continue to adjust your side of the bed accordingly, eventually settling on just the right option for you. Hot sleepers will also appreciate the cooling properties of this luxe mattress; it works to absorb excess heat and release it as you cool down, to help you sleep better at night.  Worried about making such a massive investment? Sleep Number offers a 100-night trial, plus has a more extensive warranty than most—you’ll get 15 years of protection with your purchase. Price at time of publish: $2,899 for a Queen size

Foam Density

The density of memory foam, measured in pounds per cubic foot, tells you how well the mattress will support you, retain its shape over time, and reduce motion transfer. High-density foam (6 pounds per cubic foot or more) is the most supportive, firm, and durable. If you want a plush mattress, opt for low-density foam (3 pounds per cubic foot or less), but keep in mind that it will be less supportive. 

Temperature Regulation

If you’re a hot sleeper, you may find that a traditional memory foam mattress retains too much heat—look for a mattress with open-cell construction and gel or copper-infused foam to help you sleep comfortably.

Why Trust The Spruce

This roundup was written by Brigitt Earley, a freelance writer and editor with nearly 15 years of experience. She has written extensively about furniture and home goods, including mattresses, for various publications, including The Spruce. She has personally tested a number of products from various brands on this list, including Casper, Leesa, and Sleep Number. While curating this list, she drew on that experience and reviewed bestseller lists, read hundreds of product reviews, and spoke to Dr. Peter Polos, MD, PhD, FCCP, FAASM, a sleep medicine specialist and sleep expert for Sleep Number. Additional reporting was done by Cristina Sanza, a lifestyle writer who specializes in home products and organization hacks, and Marisa Donnelly, a writer and editor with over 12 years of experience writing for outlets like Huffington Post, Bustle, BossBabe, Thought Catalog, and more.