After downloading the Encore Basic software, I am more confused than ever. For instance, on the 28th (Sleepyhead graphs on first post of this thread), it shows that while he used the machine for 5 hours and 40 minutes, only 34 of those minutes counted because the rest of the time there was no breathing detected.
There have been several days like that. Encore shows 100% of days with usage, but only 76.5% of days with >=4 hours of use, although he has used the machine for at least 5 hours a night, every night but one, during that period.
During those times when no breathing is detected, does that mean he was breathing through his mouth? Maybe the nasal pillows were not making good enough contact with his nose to register his breathing? The machine is set to turn off automatically when he takes the mask off, but the data shows he was using it at least 5 hours each night so it wasn't turning off.
On most of the days where this was happening, he was using Aloha Nasal Pillows. He has switched back to the DreamWeaver Elan because we get better results with that. He also has the Dreamwear Nasal mask but it seems like he registers more snoring events with that mask.