This 6" innerspring mattress favors firmness, so it's ideal for those who need a firm surface to sleep deep. It has a tight top and edge support, so it's designed to let you stay asleep, even if you toss and turn. With layers of gel-infused memory foam, this mattress offers cooling technology to keep you from overheating. It also arrives compressed inside a box, so we recommend giving it time to expand to its full size. Best of all, it's backed by a 10-year manufacturer's warranty. Because this mattress has a non-removable cover, we recommend adding a topper to retain freshness and mitigate stains.