Best Price Mattress 10" Memory Foam Mattress & 7.5" New Steel Box Spring/Mattress Foundation Set, King Mattress Layers: 3" Memory Foam, 2" Super Soft Pressure Relief Foam and 5" High Density Base Foam Pressure relief system virtually eliminates all pressure points to ensure a comfortable night sleep A non-skid fabric in the center helps to keep mattress in place No assembly required- remove from box, unfold and lay your mattress on top Heavy-duty steel construction with fabric cover