Sorry about the vagueness........went over all my settings before last nits sleep. Had a good nite. Looks like it was in a setting somewhere.

On occasion my Resmed AirSense 10 Autoset drops pressure during the night. It actually wakes me up. If I turn it off then back on pressure is back, then later drops again. Is this normal? I have had this machine for a month and this just started happening.