A CITY exclusive, the Rest & Renew 4.5’’memory foam sleeper mattress offers all you need for a cooler, great night’s rest. Its firm comfort level is perfect for back and stomach sleepers. Gel Aero Fusion memory foam contours and conforms to your body—plus, includes cooling fabric to keep you cool throughout the night. Flex support foam helps keep your spine comfortable while also providing long-lasting durability. This mattress comes in a box for easy installation. Being CertiPUR-US® Certified, rest assured knowing our foam materials are free from harmful chemicals and gasses.