Discover the luxury of the Millennium king hybrid mattress. Two layers of temperature-regulating material keep you at a comfortable temperature all night long. Copper-infused memory foam contributes to the cooling performance. Contouring comfort foam and pocketed coils deliver amazing support, pressure relief and comfort. In addition, the premium pressure-sensitive NanoCoil unit and individually wrapped coil pack help to provide a great night’s sleep. Comfort level: luxury cushion firm. 2 layers of phase change material (PCM). 2″ copper-infused memory foam; 3″ sculpted body-contouring comfort foam and pocketed coils. 4-way stretch knit cover and adjustable base compatible.