Stretch your budget further and stretch out on your new Sleepys mattress. The new Sleepys Reserve 15.5 pillow top mattress is perfect for those looking for the best-in-class quality bed at the perfect price point. The Reserve pillow top mattress features a responsive and luxurious surface with the perfect combination of HD firm quilt foam, soft quilt foam, and HD firm comfort foam. These layers conform to your body and offer ultimate comfort, while the cooling gel-infused memory foam layer dissipates body heat. Additionally, it features a layer of nano coils that promotes pressure relief and freedom of movement. Underneath, there are five zones of encased coils that are uniquely structured to target different areas of your body, providing ergonomic support. The two zones that give more support to your hips and shoulders have nested coils, which are tighter, thus enhancing your overall support. The sides are encased by an ultra-wide foam rail that supports the top layers of your mattress, reducing sinking or sagging. Ultimately, at the very bottom, a layer of high-density, shock-absorbing base foam improves how the encased coils react to your bodys movement and enhances 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: 5.