I have used a soft cervical collar for the past 1 1/2 yrs and it works great. I am a fairly large man and a I use a narrow collar 3 1/2 inches I believe (4' normal size). Bought 2 of them on Amazon for like $12.00 each. When lying in bed it presses gently on bottom of ur chin, pushing it up and keep...

For approx $12 try a soft cervical collar, works great for me. No more mouth leaks or dry mouth!

I had the same problem. During the night while using a nasal mask I would breath thru my mouth and it would wake me up with dry mouth. Solution for me, try soft cervical collar and it worked great keeping mouth closed. Have used it work a week now with no more mouth breathing ! Good luck and stay wi...