I just purchased a Ground Therapy Sleep Mat from Ultimate Longevity. Three nights in a row I have slept horrible. The only sensation I get is a slightly weird tingling in my legs. I like grounding outside, but I do not like the effects of this mat so far. I read it could be a detox of sorts, but have found no scientific evidence to back that claim up. I checked my ground with the meter that was provide. Supposedly it is good. Has anyone had similar negative effects from using an earthing mat?

Editing this post years later.... I ended up getting the grounding sheets instead because they were much more comfortable. And I connected a second wire to the grounding wire, ran it outside the window and connected it to the ground with a small metal rod. Problem Solved! Great night sleep and the sheets work great! Even my skeptical wife agreed.