Ellen, I have not specifically tried hypnosis for mask related claustrophobia, but my wife and I are both certified hypnotists and she has dealt with both fears and sleep issues. I think hypnosis would work well for mask related claustrophobia. Now, if could only resolve leak issues. (My wife is cur...

One of the chinstraps the RT left for me appears to be this strap, but not in an XL (oddly, this same model # is listed under several different brands). Does yours have a seam in the chin? I wore it last night and managed to sleep with it, but woke up after a few hours with my chin hurting from the...