Sleepys is here to put a little perspective back into the world of sleep. The new Sleepys Slumber 12 plush mattress offers an exclusive design utilizing five zones of encased coils that provide the ultimate support and comfort for your whole body. The three unique layers of HD quilt foam and soft quilt foam work in combination with a cooling gel-infused memory foam to not only provide superior pressure relief but also dissipates body heat. Underneath a layer of HD medium firm support foam, five zones of encased coils are uniquely structured to target different areas of your body. A thick layer of base foam underneath the encased coils allows them to bounce back and respond quicker to your body. Ultimately, it will help reduce wear and tear, and enhance durability of the encased coil system for maximum support.Dimensions: Twin: 39 W x 75 D Twin XL: 39 W x 80 D Full: 54 W x 75 D Full XL: 54 W x 80 D Queen: 60 W x 80 D King: 76 W x 80 D Cal King: 72 W x 84 D.Sherwood Warranty.Comfort Level: 4.