Until a week ago I was doing pretty well on my VPAP ASV. Then I changed my pain meds, my pain got a little out of control, my allergies started to get bad, I had insomnia for about 1 week, etc., etc. You know the story.
So here is the data from my attempts to use the ASV on Saturday night. Ten attempts that is - ResMed calls one start/stop session with a mask a mask event. Note the times for each:

I actually slept for 3-4 hours in the middle there without the machine. Of course, that is pretty poor quality sleep.
I told my wife in the morning that I had a bad night. She is totally unsympathetic. She said basically "I just sleep, then get up, and however I feel I don't think about it much." Of course she has no clue what torture these machines can be!
So I limped through the day, faking everything, pain out of control, drinking coffee, soda, so tired all day.
Then here is last night. I was dreading trying to sleep again, After 4 false starts - finally! And I feel pretty good today, pain is low, etc. Cheap thrills with therapy ...... now to get on with life.

Cheers!
Michael