Comfort level: firm 11" profile 4-way stretch knit cover Luxury cotton fiber; super support polyester fiber 1.5" firm support quilt foam; 2" firm support foam 0.5" high-density gel support memory foam Power packed 15-gauge wrapped coils Ashley edge "steel encased"; 2 perimeter rows of 13-gauge wrapped coils for edge support 1" high-density base foam 10-year limited warranty State recycling fee may apply Foundation/box spring available, sold separately Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details