Now you can adapt any mattress you have with the Lulu Ion Miracle Yarn Technology and receive the benefits with this mattress protector fitted sheet. Soft to the touch, this cover is quiet and will not move under your sheets. Our Ion Miracle Yarn Technology is made of advanced, ceramic coated, natural fiber threads. These threads trap the body's natural energy released through heat and returns the energy back into the body in the form of Far Infrared Rays (FIR), while staying cool. These rays are capable of penetrating deep into the body’s tissue where they stimulate the microcirculatory system, increasing local blood circulation. Powered by YOU!