Okay one more thing to look at, from what I can tell your machine has an EPR setting available from the user menu, if it's not already at 3, make sure it's enabled and try bumping it up a notch or two. This is Exhale Pressure Relief and will decrease the pressure by 1,2,or3 cm when you exhale.
Try it laying down just resting and then overnight.
It would be a great help if you could look up all the settings and put them in your profile. It seems like the "therapy" settings are working and 1 or more of the "comfort" settings are stopping you from getting good sleep
I set the epr to 3 and that helped some also. I didnt get the humidifier because of maintenance. Tried it again last night with bad sucess. Seems like as soon as I fall a sleep is when I'm having problems not 100 % on that but that's what it feels like and looking at the clock that's seems about right