Power your sleep with the comfort you can count on with the Sealy 6" Twin Memory Foam Mattress. This low-profile adaptive memory foam mattress provides the perfect balance of luxurious comfort and optimal support to help you get the blissful night of sleep you deserve. With layers of comfort, the softer conforming memory foam is designed to hug the contours of your body while the more dense foam layers deeper in the mattress give you the support you need. The medium-firm mattress stays true to the needs of side, back, and stomach sleepers of all body types for personalized comfort and pressure relief, and the CopperChill infusion in the top foam layer promotes a cooler sleeping experience to keep you dry and cozy as you sleep so you can wake up feeling refreshed and ready to start the day. Your Mattress-in-a-Box will be delivered right to your door for easy transport and set up - simply remove the packaging and allow 24 to 72 hours for your mattress to regain its full shape. Please note that any memory foam will expand faster in a warmer room.