This Therapeutic mattress is made of 5" High Density Memory Foam and 7" support base Foam w/Dual Air-Flow, this provides a cool, motion free night sleep! It uses the Visco-Elastic Memory Foam Technology developed by NASA to sense your body's weight and temperature and then gently conform to your shape to minimize pressure points and reduce tossing and turning. Don't be fooled into buying brand names an "original" for no reason. Our mattress is guaranteed to feel and perform the same! All items new and shipped vacuum packed in original packaging. Mattress will conform to its proper size within 1-2 hours. Mattress ONLY!