Comfort level: pillow top Luxury cotton fiber; super support polyester fiber Super-soft support foam Comfort support foam High-density gel support memory foam; high-density support foam 360 power packed 15-gauge wrapped coils Ashley edge "steel encased"; 2 perimeter rows of 13-gauge wrapped coils for edge support 4-way stretch knit cover 10-year non-prorated warranty Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details Foundation/box spring available, sold separately Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening State recycling fee may apply