Why so many multiple sessions

[anleva]

So was it a power source problem or a mask problem?

The multiple sessions with time gaps stopped after I both plugged into the wall instead of the power strip and started mouth taping.  So since I changed two variables at the same time, I can't be certain  

However, I'm thinking a combination of mouth breathing and the mask moving on my face during the night is the most likely?  And my mask leaks are less with the P30i vs the N30i.

[Sleeprider]

Much better results with a significant reduction of leaks. I still think you will benefit from the bilevel therapy you will get from EPR. It will reduce flow limitations and pressure changes. Gone the 7-22 with EPR 3 a try.