At our local AWAKE meeting last night, the Respironics rep there said dryness was the number 1 complaint among CPAP users. I didn't expect that -- thought it would be mask leak or mask fitting or mouth breathing.
My own #1 complaint is mouth breathing. What is everyone's else's?
I could never make the chin strap work. A full face mask kept getting pushed aside - as I am a side sleeper. After months of trying many masks, etc. I have finally solved the probelm. I put paper tape over my mouth (vertically) I use a ResMed Mirage Micro nasal mask. Because I have Central/Complex Sleep Apnea, I use a Respironics BiPap autho SV with Encore Smart Card. With all that equipment and controlled release Ambien, I FINALLY manage to get at least five hours of continuous sleep.