Purest Of America 10 Inch Mattress with 2.5 Inch Memory Foam (SHORT QUEEN) Mattress layers include 2.5 inches memory foam and 7.5 inches of high density foam Memory foam significantly reduces pressure points to ensure a comfortable night's sleep Mattress is compressed, rolled, and shipped in a box. Please allow 48 - 72 hours for it to expand fully after opening Comes with 25 Year Manufacturer's Warranty Meets Federal Flammability Standard 16 CFR 1633