Janelle, you got me curious about something you said...
Don't forget when comparing your nightly numbers that the software generally interprets leaks as Apneas and/or Central Apneas. Or at least the SilverLining does.
Curious enough that I dug back through my data files from when I used the 420E and Silverlining software for almost a year. I was able to find quite a few of my old "leaky" reports back when I was experimenting using
nothing to control mouth air leaks.. some with jagged leak lines going to the top of the graph.
On even the most massive leak reports, there were most often no events of
any kind corresponding with the leak itself - neither apnea, hypopnea, flow limitation, nor "Ca" (Silverlining's term for probable Centrals.) Even the more moderate to high leaks showed no real correlation on my data with events.
The pressure would go up dealing with big leaks, but nothing I saw on my Silverlining data indicated that the machine (or the software) was generally interpreting leaks as any kind of apneic event at all. At least not for me. I suppose it could be different for someone else. I don't know if a generalization about that, one way or another, would hold for everyone.