My Mom's friend lent me his book on Earthing, I had already read some articles about it, but the book is really interesting. I went outside and sat with my feet on the ground while I read. I had the tingling in the soles of my feet that some people get. I did notice that I didn't have much pain in my hips something that has been bad lately and I slept more soundly. Coinsidence? I am thinking about just getting the small mat to try I could use it in bed too it's small though someone said about the size of a placemat. I am going to continue to go outside and see what happens.