Thanks for the great comments!
Rooster, I ended up with the Mirage Liberty. I know this is for mouth breathers but I found that when I went to sleep and my mouth opened I ended up waking and gasping for breath. Once I taped my mouth that stopped. I can probably go to just a nasal pillow mask now.

After almost 2 weeks of sleeping only 2 to 4 hours a night , changes in masks and pillows, adjustments in humidity, experimenting with taping my mouth shut and just sheer unadulterated frustration, it all finally came together! I have two 8 hour dream filled nights under my belt and more energy than...

NotMuffy, This is a very smart group. Put me in line with you. I didn't understand either. LOL........

Makes sence to me. I'm going in to discuss this with my RT tomorrow.
Thanks again.

LoQ, Thanks for the reply. I'll see about adjusting the pressure down some over the next couple of nights. I guess the thing that bothers me is how I can tolerate the pressure until I get to a certain stage of sleep and then have a problem.
Thanks again.

I use the RESMED VPAP S and the Liberty mask. My pressure is 20/16 and I get I litre O2. My problem has not been getting use to the equipment, I breath very comfortably and have pretty much adjusted the leaks out. However, I'm use to going to sleep within 5 minute of getting to bed and now I'm going...