With this California king mattress, you have endless possibilities for restful sleep. Its power packed wrapped coils contour to your body. Layers of foam—including response memory foam—provide support and comfort. You're sure to wake up feeling refreshed and restored.Features:Comfort level: plushHigh-density response memory foam; high-density whisper foam918 power packed 15-gauge wrapped coilsAshley Edge "steel encased"; 2 perimeter rows of 13-gauge wrapped coils for edge supportBase support foam4-way stretch coverLuxury pillow pocket technologyAdjustable base compatible10-year non-prorated warrantyNote: Purchasing mattress and foundation from two different brands may void warranty; check warranty for detailsFoundation/box spring available, sold separatelyMattress ships in a box; please allow 48 hours for your mattress to fully expand after openingState recycling fee may apply