I freekin need a nap

Julie wrote:First thing - what are the chances you're mouth breathing after falling asleep and losing all the Cpap air that way?

This, this, this. I was mouth breathing and didn't even know it until I shared a hotel room with my daughter! Chances are good that all your therapy air is coming right out your mouth. Try taping your mouth, seriously. Do a search on "taping" and see the various methods used here. Good luck, and keep trying for the right fit.