I sleep with Big Magic mat under my bottom sheet nightly for my low back.

Using Big Magic for Low Back Pain and Neck Issues

I sleep with Big Magic mat under my bottom sheet nightly for my low back. It lays from my tailbone to just below my neck. I do use a pillow or two but when I have neck issues, I use just one pillow and make sure I position myself so it is under my neck. I love it. Such help.

Source: https://www.facebook.com/groups/MiraMate/permalink/747107419149577/