I was given a Philips Nuance nasal pillow to use as my "mask." When the clinic asked me if I sleep with my mouth open or closed, I couldn't give them a definitive answer (I sleep alone, however my mother and a former partner can attest to my frequent snoring). I have to admit with all the wires they put on me and the video taken during the test, they couldn't determine if I did indeed sleep with my mouth open. I did snore during the test, using a full mask, so I can only conclude that they don't use the incidence of snoring as a single determinant of sleeping with an open mouth.
Nevertheless, they suggested I start with the nasal pillows and see what happens.
So far, it's been rough but I've tried to keep to my therapy of a minimum 4 hours use per night (I don't think I've gotten any sleep since I started using it). I used a full mask for the test and it left a mark on my nose so ideally I would like to stick with the nasal pillows. However, I'm also looking into adding a chin strap to keep my mouth closed. (I should add that I took a sleeping pill during the CPAP test so I wasn't all that bothered by the full mask until I noticed the red mark and soreness in my nose bridge the next day.)
Does anyone have any experience using the two together- the nasal pillows along with a chin strap? And whether the combination is effective in avoiding the face mask?
My setting is 6, btw.