Built using trusted technologies and luxurious finishes, the Simmons BeautySleep mattress provides an unmatched sleeping experience. There are six components that go into a Simmons BeautySleep Mattress: AirFeel™ Foam, Foam-Encased Edge-Support System, AirCool® Gel Memory Foam, 725 Denisty Wrapped Coil Technology, GelTouch® Foam and SurfaceCool®. AirFeel™ Foam allows air to flow through mattress and gives the mattress more durability. The Foam-Encased Edge-Support System gives the mattress a supportive seating edge but also provides more sleeping surgact area. AirCool® Gel Memory Foam provides pressure relief, as does the 725 Denisty Wrapped Coil Technology. Lastly, GelTouch® Foam and SurfaceCool® are focused on making sure you have the right comfort level and temperature for a perfect night's sleep.