Can't be expected to use the mask of any type if I can't sleep! I have found one that I can use when I am able to sleep. My sleep Dr. told me to go to my Family Dr. for meds and he won't give me anything to keep me asleep, just put me to sleep and that doesn't work all the time. Doesn't seem that either of them think my problem is serious enough to worry about!
Richard
PS: Too Damn much trouble finding new Drs.