The Back on Track® Mattress Overlay not only has the properties of our exclusive Welltex® fabric, but is designed to assist the body’s circulation while adhering to an element of comfort and durability. Many feel it helps them sleep better and longer so that they wake up refreshed and more limber. The Mattress Overlay is a fantastic addition to a good night’s sleep in any household, hotel, or home-away-from-home.*Best used on top of your mattress covered by a thin sheet to achieve the best therapeutic benefits.*