★★★★☆
My sister has fibromyalgia, and for several decades has almost always been in pain. She began sleeping grounded on an earthing sheet for about 4 nights, and since the first night she has had almost no pain at all, just minor twinges. So far, it has not helped her to sleep much better (she also has sleep apnea and other health issues), but she has more energy in the daytime.
