True REST(r), also known as Reduced Environmental Stimulus Therapy, is a zero-gravity environment which allows the mind and body completely to let go, relax, then reset. Epsom Salts are buoyant enough to make floating on water feel like you’re floating on air. This unique state allows you to instantly relieve pain, relax, heal, and improve sleep by eliminating the gravity pull on the nervous and musculoskeletal systems.