Thank you, Palerider, I just ordered xylimelts. And, I have my humidifier on as high as it will go.

I’ve been on CPAP with a humidifier successfully since 2015. I’ve recently had to add oxygen to the process. Now, I wake up several times a night where my mouth is completely dry. The humidifier chamber has plenty of water in it, and I keep my mouth sealed closed with sleep tape just as I did before...