Best Mattresses 2026

“When two people of different builds share a bed, a medium-feel hybrid with a firm edge is the easiest choice to agree on.”

Start with how you sleep

Side sleepers need give at the shoulder and hip, so a medium or plush surface over supportive coils works best. A firm all-foam bed pushes the shoulder up and twists the spine. Back sleepers do well on medium-firm, which keeps the lower back level without letting the hips sink, and stomach sleepers need the firmest option, because a soft surface lets the pelvis drop and arches the back.

Low back pain does not automatically call for a hard mattress. In a randomized trial of 313 adults with chronic low back pain, published in The Lancet in 2003, people given a medium-firm mattress reported less pain in bed and on rising after 90 days than those given a firm one. We cover both cases in more depth in our rankings for side sleepers and for back pain.

Hybrid, memory foam, innerspring or latex

The construction decides how a bed feels and how warm it sleeps. Memory foam molds slowly to the body and absorbs a partner’s movement, but it holds more heat and makes turning over a little harder. Hybrids put a few inches of foam over pocketed coils, so they spring back faster, breathe better and keep firmer edges, at a higher price and weight. A coil-on-coil innerspring with a pillow top sits highest and lets the most air through, and latex is springy, durable and cool, the usual choice if you want natural or organic materials.

Whatever the foam, look for the CertiPUR-US seal, which certifies foam made without formaldehyde, mercury or lead and with VOC emissions under 0.5 parts per million. The two biggest groups have their own rankings, our best memory foam mattresses and our best hybrid mattresses.

Match the firmness to your weight

Firmness labels are written for an average body. As a rule of thumb, a sleeper under about 130 lb sinks less and finds a medium mattress firmer than its label, while someone over about 230 lb compresses the comfort layers further and needs coils, a thicker support core and a firmer setting to stay aligned. Couples with a large combined weight should favor hybrids of 12 inches or more with reinforced edges. If you sleep hot, a coil core and a breathable cover matter more than any cooling claim on the box, and our cooling mattress ranking covers that case.

Compare the trial terms

Most online brands let you sleep on a mattress for 100 to 365 nights, but a trial can mean two different deals. Some refund the full price and collect the mattress for free, others deduct a processing fee or ask you to pay the original shipping, and several want you to keep the mattress for a minimum number of nights first. The table sets out the terms of every pick.

Pick the right size

Measure the frame before you order, because a boxed mattress is awkward to send back for a size swap. For couples the choice is usually Queen or King. A Queen is 60 inches wide, which leaves each partner 30 inches, while a King adds 16 inches at 76 inches wide, the same 80-inch length. We rank the best models in each common size separately, for Twin, Full, Queen and King beds, and for a California king.