Comfort level: ultra plush .75" high density gel memory foam lumbar support 1.5" high density super soft quilt foam 1" upholstery grade comfort support foam 2 perimeter rows of 9" 13-gauge pocketed coils Individual power packed wrapped coils 10-year non-prorated warranty, CertiPur-US certified, adjustable base compatible Foundation/box spring available, sold separately State recycling fee may apply Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening