Thanks divengolf. Yep, I have moderate to severe sleep apnea.
Hopefully you've talked to a cardiologist about this as well. There appears to be strong connection/correlation between sleep apnea and CV disease... (Sleep Apnea and Cardiovascular Disease: An American Heart Association/American College of Cardiology Scientific Statement)
I would also contact DAN about any info they might have about sleep apnea and diving. Might also want to look into ensuring your medical form is up to date and cleared relative to sleep apnea.
I would be concerned about a diver who showed up on a boat with a CPAP machine. Why?
The last diver I heard about using a CPAP machine didn't tell anyone about it, and we didn't find out about his apnea (and underlying conditions) until his hotel room was being cleaned out... to return all his belongings to his widow and kids.
:-(