I sleep on a grounding mattress cover. I bought it over a year ago and it has benefited myself, my husband, and our two small dogs who sleep with us. My husband used to suffer from an elbow injury that he sustained 20 years ago and nothing ever seemed to help reduce the pain he felt. Then after only a month of sleeping on the mat, the pain in his elbow went away and he's has no problems since! I have also noticed that I do not wake-up with swollen hands anymore. Plus, my 16 year old dog who used to suffer from constant dental infections has not has the same problems since sleeping on the mat! Grounding nightly really does a fantastic job reducing chronic inflammation!