The Knee Relaxer is a high quality Australian made leg support designed to elevate the knees and give optimum comfort to the user by providing a zero gravity position for the user. Sleeping with your knees in raised position is proven to take pressure off the back like when sleeping in the fetal position on your side. There can be excellent benefits for both your back and also your knees. This position should prevent your knees crossing over and causing pressure on legs and lower back