The Back on Track Mattress Overlay is suitable for all those who generally have tension in the body or in their back. Many users find that they have a deeper sleep and wake up the next morning feeling refreshed due to the revolutionary Welltex Ceramic Fabric. Available in white with a beige rim and in following dimensions: 35"x78" (90x200 cm), 47" x78" (120x200 cm), 55" x 78" (140x200 cm), 62" x 78" (160x200 cm), 70" x 78" (180x200 cm).