Hi Chalkie
Just to add to this, hope I am not butting in, a Neck Collar has helped me tremendously. See one of my other threads where this was pointed out to me.
http://www.apneaboard.com/forums/Thread-...ausing-OSA
Worth searching this forum for chin tucking for more discussions, as the more senior members indicate, this comes up very often.
My own sleep Doc said mouth taping was OK, but I only have good results with this
if I also use a Neck Collar.
Pretty much any one that is comfortable will work. Just so glad to be able to get rid of the (not so useful Chin Straps, yuck)
I have a Medium one for when I use a nasal pillow/cradle and in the last 3 nights I find a larger one better for use with my F30i.
I have it on just tight enough to support my chin, I actually have it loose enough so it doesn't squash my neck, even found it had rotated 180 degrees one night!
Oh, and by the way, I have a long tall thin neck, BMI around 23, so I don't think neck size is the issue. In fact the more flexible your neck is the more likely you are to ' chin tuck'. I am convinced that is what got me into therapy in the first place, but that is a subject for another day.
I think everyone on PAP therapy should at least give this a fair go.
Be interested to hear how you progress.