Firm mattresses are on the opposite end of the spectrum from plush and ultra-plush mattresses. Thick, solid surfaces promote healthy sleep by providing maximum support that helps relieve muscle tension and joint pressure. A firm mattress' unique design can also improve circulation to help you enjoy deep, restorative sleep each night.Stomach sleepers often enjoy the stability of a firm mattress. Along with alleviating back pain, these sturdy surfaces diffuse pressure throughout the body, ensuring an even level of head-to-toe comfort. Since firm mattresses have less give, back sleepers can keep their chests elevated for easy breathing through the night.Some firm mattresses feature advanced cooling and moisture-wicking designs to ensure a relaxing, refreshing night's rest. Gel-infused memory foam layers provide an inviting cool-to-the-touch feeling, while airflow pockets throughout your mattress keep fresh air circulating as you sleep. A firm mattress with a protective topper keeps the sleep surface cool and dry to promote deep, cozy slumber. With a vast array of mattress sizes available for kids and adults, it's easy to find a firm mattress to suit your bedroom. Shop luxurious king and queen mattresses to create a grand centerpiece in your primary bedroom or guest suite. Outfit a bonus room or studio apartment with a smaller full-size mattress.