Thanks Pugsy, I suspected that I was not alone on this complaint.

Buttermilkbouy, you're right, I may have a similar experience with a different make/model of CPAP,. I've been using my CPAP which has been disrupting my sleep in this fashion for a couple of years!

I want to thank everyone for their thoughtful responses. As Pugsly suggested, I have no recourse except to try another brand of machine. As Yaconsult said, my nasal pillows concentrate the small pressure increase into narrow orifices and then blast it into my lungs, which is sufficiently startling t...

Thanks Den,
My machine is configured to CPAP mode, MIN and MAX pressures are set to the same pressure and I get the +0.5 units of pressure puff just as I'm drifting off to sleep. Is there a CPAP model on the market that does not do this? I'll pay somebody to build me one from scratch.
-jim

Thank you Pugsly for your prompt reply. REF 560P. I expect that the puff of pressure that is giving me fits is what you describe as "the tiny pressure puffs to help it figure out if the airway is open or closed." If they all do this, I am doomed. Is there no recourse?
-jim