Sleep To Live, by Kingsdown, Back Smart Series of mattresses, are designed to work with their bedMATCH™ diagnostic system to match you with the perfect mattress. Deluxe features such as OptiCoil™ Innerspring, individually wrapped precision coils provide optimized support; Fresh Comfort Quilt with cooling fibers help maintain an ideal body temperature for a healthier sleep; a Lumber Band of Gel Infused Memory Foam provides excellent lumbar support; a five zone support foam with added support in areas where needed most. Additional layers of specialty foam provide a true luxurious sleeping experience.