The Personal Comfort Advanced Series is a best overall value with advanced features and benefits to help give you a better night’s sleep. The A5 mattresses include our exclusive, patented, reversible “duvet style” cotton pillow top: the only top cover available with high quality fabrics on both sides. The patented design allows the top cover to be removed and flipped over for comfort and durability and makes it easy to replace the top cover or upgrade with ease. Our patented, zipped center panel with Airlayer design also gives you access to the center comfort compartment. With a layer of convoluted evolution comfort foam inside a zipped center panel, you can easily rotate the foam for longer mattress life. These models come standard with our digital state-of-the-art pump system that utilizes a medically recognized pressure scale with 45 number settings, from 5 to 50. Our 2-Zone technology allows adjustment for each sleeper and our touch screen digital hand controls offer individualized personalization. Remote app now available for Android on Google Play and will be available for iOS in July 2016, just search for Personal Comfort Bed in the app store and download today. Connect directly to your mattress and control wirelessly using our free downloadable app. Build and materials: “Duvet Style” Cotton Pillow Top Zipped Panel, Woven Cotton Zipper Cover, Polyurethane Foam (1.8/28), Fire Barrier, Microbial, Vulcanized Rubber, Electric Pump System, Wired Remotes, Reinforced Air Hoses. All Personal Comfort products contain certified flexible polyurethane foams certified by CertiPUR-US, a not-for-profit certification program for foam used in bedding products. When you see the CertiPUR-US seal, you can be confident that the flexible polyurethane foam inside meets CertiPUR-US standards for content, emissions, and durability, and has been analyzed by independent, accredited testing laboratories.