Funny, I feel the same way about wearing my mask, a little vulnerable, because you can't actually hear as well with the mask on. However, I'm always afraid I won't hear my elderly mother when she gets up in the middle of the night and needs my help, but somehow, I always do. I think we compensate in...

Rested Gal,

Thank you for your explanation. It's right on target, and describes what I'm experiencing. I also went to the site that explains how to get into the hidden menu. I may turn off the C-Flex.

Dormeus

Which if the M series machines is it? O. I don't know - I think I have a big learning curve ahead of me. I'm at work, battling a HUGE case of sleepiness, and feeling a bit desperate about keeping awake for the next 7 hours. I'll take a look at it when I get home, and email the info. I appreciate yo...

Thank you all for your help. I have a REMstar M series...

Dormeus

John - What are 'Centrals"?

Dormeus