My son has Perthes disease and so I bought him an Earthing Sleep Mat to see if it would help with the pain and stiffness and to also support the healing process of the disease. Since he has been using it he has felt no pain. I was so impressed I read Clint Ober’s book ‘Earthing’ to understand exactly how Earthing works and it’s fascinating. I also bought a mat for my bed and have seen improvements in my own health.