I wear CPAP also. I have had it for abut 4 years. I had 2 sleep studies one with the mask and one without. The first one was without the mask and the sleep tech told me hey Jan you snore really loud. I was like no duh dude. The next study I wore the mask and it made a huge difference. The nights that I wear it I can tell the difference from the nights I don't. I am still really tired right now but I think that's a different problem. I just had an over night pulse oxygen test done and it showed that the CPAP is doing its job. I wear the mask that goes over my nose and up over my head. I couldn't handle the nose pillows.

Good luck if you decide to get one.

Jbug