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Strange Nights on CPAP
#1
Strange Nights on CPAP
Last night I had a moment where I woke up and realized my mask was off and in my hand. I went to put the mask down and it shot air out which made me realize that it was still on so I put the mask back on and went back to sleep.

This got me curious as to what had happened so I loaded the data into OSCAR and this is what I see. 

[attachment=19905]

Around 23:10 I had a RERA after about 30 minutes of near constant flow flow limitation (one recovery breath about half way). It looks like I must have removed the mask shortly after the arousal as there was a large leak then I must have blocked the mask holes with my thumb and fallen back to sleep, I do not remember any of this happening. The machine deadheaded for a while then it either shuts off or at least the session ends and data is not recorded (I have smartstart off, not sure why it was shutting off, I assume some sort of protection built into the machine? Overheating due to deadheading?). Over the next half hour there was a few times when it turned back on due to a short bit of flow then grasp must have tightened and it would shut off again. Then 35 minutes after removing the mask I must have woke up and realized I was holding the mask, released my grip and air started flowing again so put it back on and went back to sleep. 

All a very strange event and it made me think a thread like this where people could share some of their strange nights on CPAP would be interesting. 

If anyone knows what was causing the machine to turn off that would be interesting to know as well.
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#2
RE: Strange Nights on CPAP
When smart start is enabled a large leak of over approx 100 l/m causes the machine to turn off
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#3
RE: Strange Nights on CPAP
The weird thing here is it doesn't look like the machine shuts down, but stops recording any flow or leak. Perhaps the mask is partially displaced, and occasionally turns the machine on with large leaks enough to record a few spots of data.  That's what it looks like.   Dont-know
Sleeprider
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