As we discussed before, I would set the machine to use an Auto Ramp with a start pressure of 6 cm, and then set the EPR to ramp only. That will let you start with the full 6 cm on inhale and it will cut back to the 4 cm on exhale. After you go to sleep the machine will increase the exhale pressure to 6 cm. That should still be quite comfortable, and it could prevent the few OA events that you are having.
But will that do anything for your sleep quality? Hard to say. My one thought is that 6 cm of pressure is quite low, and some can feel somewhat starved for air at that setting. It depends on how you feel it, but one other change to consider would be to increase your minimum to 7 cm to see if that feels better and gives you a better sleep. If you do I would also increase the ramp start pressure to 7 cm.
And, as we discussed before it can take a while to get comfortable with a PAP machine. One other minor comfort trick is to turn on the prewarming 10-15 minutes before you go to bed. It is a function on the user menu that you can select. That warms the water in the humidifier and get your more humidity sooner. Do you have a heated hose? That can add some comfort too. The machine can be set to auto humidity control.
Hope that helps some,
Thanks for replying. :)
I have no other charts to show (I have one other night, for a few hours, which is similar to this one), and I honestly can't deal with it anymore. I have tried higher settings, and it does not help. No matter what setting, I do not feel like I am getting enough air. It's very subtle, but my body knows. There are other issues as well, no need to go into. The point is that I maybe, possibly could get used to breathing with this thing after a matter of months, but given that I honestly don't know if I have apnea bad enough that it would help, I can't bring myself to continue putting myself through this hell (which is what it is in some ways).
Re: EPR. I experimented with it being off, as you suggested, and it just doesn't work for me at all. The only way I can tolerate the machine is if the EPR is at 3. And even then, the breathing is difficult and unnatural, and it's like putting a mountain between me and falling asleep. When I wake up, it is virtually impossible for me to go back to sleep with this thing on, which is why I only have a couple nights at a few hours, because after spending an hour in the middle of the night trying to fall asleep again with this horrible thing, I take it off and let myself fall back asleep.
Okay, well, I guess the bottom line is that I still have no real idea whether CPAP would help me with a problem that I'm not even sure is bad enough to warrant it. Thank you for your help, though. It is genuinely appreciated.