Sleepys is here to put a little perspective back into the world of sleep. The new Sleepys Slumber 13.5 pillow top mattress, combines multiple layers of unique foam to give you a luxurious, comfortable sleep surface with ultimate support for your whole body. The unique layers of HD quilt foam and comfort foam on top of the mattress offers the necessary level of padding to ensure the sleep surface is supportive and comfortable. The cooling gel-infused memory foam dissipates body heat, while the exclusively zoned, eight-inch encased coil system provides concentrated ergonomic support where you need it most. The two zones that give more support to your hips and shoulders have nested coils, that are tightly placed together to provide the most exceptional performance. At the very bottom, a layer of high-density, shock-absorbing base foam helps the encased coils react to your body movement. Ultimately, seven-and-a-half rails of foam surround your entire mattress to provide support and reduce sinking and sagging on the edges of your mattress.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: 5.