I have fibromyalgia and it stinks. This blanket warms up nicely and gives me a nice feeling of relaxation. I only lay in it for 30 minutes so time will tell. So far so good. Hubby has Poly myalgia Rheumatica and he loved it and he never likes anything.
I do love everything about the sauna blanket, but there are definite issues with the zipper being able to flip from one side to the other. I really really think it needs to be easier to zip from the inside zipping it up. It gets stuck and it’s very unsettling.