Comfort level: medium 12" profile height High-density super soft quilt foam Flame-retardant polyester comfort fiber High-density gel memory foam lumbar support 1" upholstery grade comfort support foam 2 perimeter rows of 9" 13-gauge wrapped coils for edge-to-edge support Adjustable base compatible 10-year non-prorated warranty Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details Foundation/box spring sold separately State recycling fee may apply Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening