Discover the luxury of the Millennium king gel memory foam mattress. A layer of cooling gel latex and two layers of temperature-regulating material keep you at a comfortable temperature all night long. Copper-infused memory foam contributes to the cooling performance, and a green tea-infused support foam base keeps your mattress fresh. Contouring comfort foam conforms to your body, delivering amazing support, pressure relief and comfort. Comfort level: cushion firm. 2 layers of phase change material (PCM). 2″ copper-infused gel memory foam; 3″ sculpted body-contouring comfort foam; green tea-infused support foam base. 4-way stretch knit cover and adjustable base compatible.