The Collection 12-inch California King-size hybrid mattress (72" x 84" x 12"H) blends firm support, cooling comfort, and durable craftsmanship-all made in the USA-for a customized sleep experience. It features a four-layer build: 2.7" green tea gel-infused memory foam (cools and contours to the body), 1.5" plush foam (adds gentle cushioning), 6.3" 13.5-gauge pocket coils (boosts stability and minimizes motion transfer), and 1.5" high-density charcoal-infused base foam (prevents sagging). Wrapped in a breathable 100% polyester white fabric (Upholstery (S) cleaning code), it sets up easily (unroll and let expand 48 hours) and keeps sleep comfortable year-round, ideal for those seeking ample California King-sized space.