The compliance is sure promising. I have been on CPAP since Feb. 1/12 and I am finding that I get use to the mask but then there are days I feel like I am trying to hard and just want to be normal.
I read of two people on another forum who liked Provent. You breathe through your mouth until you're asleep and then most people naturally switch over to nasal breathing. They don't work for everyone, but would be handy for a camping trip or power outage. Better than nothing and the two folks I mentioned were very pleased. They had not had a sleep study while using them though.
I used the Provent things for a while last summer after being diagnosed with Sleep Apnea. Unfortunately, I did a lot of mouth breathing so they didn't work for me and my sleep doc never suggested a chin strap. My experience in using them was that it was somewhat difficult to breath with them as they restrict the exhale which is what causes the back pressure to keep the airway open. This caused me to take them off several nights. I also believe that this caused me to breath through my mouth on exhale. I also read something that stated that there might be a problem with co2 build up due to the restricted exhale. They were not terribly uncomfortable, a bit like a nasal pillows I guess except for the pressure on exhale. Of course, they have no data readout so you can't determine whether you are successfully treating your apnea or not. They are a bit pricy and I can confirm that my insurance did not pay.
Thanks DEND746. You gave alot of detail and I don't think I want to try them. In addition, I didn't even think about the fact that there would be no stats on how last night went. I didn't check the Review thread to see if you posted there. I hope you did because you have alot of information. I'm going to check now.