stinky plastic!
The fowl smell of this product didn't go away after 3 days of airing out so I got a refund. I could not sleep on this matt with the smell choking me.  Ordered the cotton cloth matt with silver thread and the grounding technology works! Amazon would not allow a zero star ratting so I gave it an undeserved 1 star so hopefully you could read this and save yourself time and bother to just get the cotton sheet version with the first order.
Rating: 1 stars