Features a deluxe, velour cover3” of premium Theratouch memory foam, 3” of ventilated Air-cool foam, and 6" of high-density support foamNatural castor seed oil and infused green tea help to keep your mattress freshOur patented compression technology allows our mattresses to be compressed, rolled and shipped in a box via Fedex; please allow 48 hours for it to expand fully after openingFoam is CertiPUR-US Certified for durability, performance and contentCan be placed on top of any box spring or platform bedTwin: 75"W x 39"D x 12"HFull: 75"W x 54"D x 12"HQueen: 80"W x 60"D x 12"HKing: 80"W x 76"D x 12"HCalifornia King: 86"W x 72"D x 12"H