Costway 8" King Size Memory Foam Mattress - Medium Firm Support, Pressure Relief & Breathable Design for Back Pain Relief - Perfect for Master Bedroom, Guest Room & RV Use

The Costway 8" memory foam mattress features a 4-layer construction, including memory foam, soft foam and high-density foam, for pressure relief and full-body support. Its breathable poly stretch fabric cover ensures a comfortable sleeping climate, while the CertiPUR-US certification guarantees a safe design.