I was scheduled to have a sleep test in August. However, even before I could take my test, my mother who is a sleep apnea veteran said that a nasal pillow mask would suit me best. I underwent my test on August 28th, and the RT brought a nasal mask and a nasal pillow. I informed the RT that I am an “open mouth” sleeper, drool a lot and allergies have a particular liking for me and I am worried about using a nasal mask. The RT simply shrugged and said the nasal mask is okay, and one should only use FFM when it becomes necessary, and for closing the mouth, one can always use chinstraps. All said and done, I tried a nasal mask and immediately had a disliking towards it. I then switched to a nasal pillow, struggled to keep my mouth shut, but in the end was able to do it successfully. But worried about using a nasal mask when having severe allergies, I got a hybrid also. I tried it once, and even though I had a good sleep, I woke up with a dry mouth. I have these questions 1) Would FFM help in reducing my dry mouth or would it be the same? 2) Can I get allergies and cold if I simply use nasal pillow?? 3) Should I go for chin strap if I use nasal pillow only??? My thinking is on the lines that using chin strap would help me in keeping my mouth shut and reduce problems.