Posturepedic Kempton Sealy Essentials Pillow Top Twin Mattress with Foundation Knit Cover 2" Sealy Cool Air Gel Foam 2" Soft Sealy Cool Gel Foam 1" Sealy Cool Gel Foam Sealy Response Open Coils Coil count Twin 336, Full 513, Queen 638, King 812 Solid Edge Foam Support System Steel and Wood Foundation Flame Guard Air Loft Fiber CertiPUR-US program certified 10 year limited warranty