If the 0.0 thing is your ultimate goal....get rid of that idea right now. Even if you get it that doesn't mean you will feel it.kidchameleon wrote: ↑Mon Jul 11, 2022 10:10 amI feel like I'm pretty close to a 0 AHI and I don't want to continue screwing up.
If nothing else a false positive awake flagged event will mess up "perfection".
Your goal should be good solid sleep and not some arbitrary number. Did you know that AHI 0.0 doesn't mean you slept great and will feel like a million bucks. It's just a number. But it doesn't guarantee anything except maybe a chance to pat yourself on the back. You can get an AHI of 0.0 and still sleep like crap and feel like crap.
You are going to have nights like last night and nights like the night before...accept it.
You only worry about nights like last night when you start seeing them happen consistently night after night and THEN the first thing you should do is decide if those flagged events happened when you were asleep or not...THEN start wondering if something needs to be changed because the flagged events seem to be asleep events.
You can have false positive/awake/arousal flagged events in any category. It's not limited to centrals.
I know this to be a fact because I have had them myself.
Sounds to me like you need to do more education on flow rate evaluation.
Watch the videos here
http://freecpapadvice.com/sleepyhead-free-software
I am 100% certain that some of your flagged events got flagged when you weren't fully asleep. How many I don't know but I know some of them you weren't asleep. If you weren't asleep they don't count in terms of therapy effectiveness and you can't fix awake flagged events with pressure changes anyway. You have to fix the cause of the awakening and it isn't always related to the airway collapsing.
Here is an example I like to use
the ASLEEP breathing is circled in red....the other stuff after it is related to not being asleep and they just don't count
and a more zoomed out image of the same time frame. All that mess flagged after the circled area simply doesn't count in terms of cpap therapy effectiveness. Changing anything won't fix that poor sleep/awake breathing stuff. I have to fix the cause of the poor sleep in the first place and it wasn't related to the airway itself.
You can't fix bad sleep with cpap tweaks if the bad sleep is from anything other than airway issues. You just can't.
Make sure the problem you are trying to fix with cpap setting tweaks is fixable with a tweak.