On the one hand, bummer about your OSA condition. On the other hand, Kudos for taking care of yourself and your passengers by getting treatment!

I too have this condition and I decided I wasnt going to hide it but face it head on. I was up front with my AME about it and his office made the paperwork so easy for the special issuance.

I've been using the Airsense 11 since last summer and I've never felt better. When I wake up in the morning, there is such a feeling of wellness.

As for the therapy itself, I actually like the feeling of the increasing pressure as I inhale. It's like you start to inhale and the machine assists and does the rest for you. The best way I can describe it is "Low-gravity breathing".

I hope other pilots get checked out and get some SLEEP!