Copper Lux - 12" Soft Memory Foam Mattress With Phase Change Cooling FabricCooling Technology: The Copper Lux series features a phase change cooling fabric cover that naturally contours to your pressure points, providing excellent support and a plush feel. This innovative technology helps regulate temperature, ensuring a comfortable sleeping experience. Layered Comfort: This mattress includes multiple layers for optimal comfort: a 2 inch ventilated copper infused memory layer, a 2 inch marble gel memory layer, a 2 inch gel