Last night my humidifier ran dry. Don't know when but I was awake from 2:00 to 6:00. While awake, I felt very comfortable and did not notice any dryness at all.
I only mention this because my AHI went from <1 to 6.5 for no apparent reason. Good pressure, leaks, flow limits etc. Most were CAs and in the last part of the night.
I know you can have bad days but this is the worst day since starting therapy. Earlier that day I took a 1 hour nap, best nap ever.
Can lack of humidification (even though I was very comfortable) cause this or did just have one of those bad days.
Any help on causes of a "bad" day would be apreciated.
Try to side sleep. If you roll onto your back, likely your events will increase.
Make sure you didn't get a water tank that leaks -- there were some defectives in the supply chain.
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How much water was in the humidifier tank when you went to bed last night? If it was freshly filled, I would examine it for cracks.
You could also compare your daily SleepyHead graphs for last night and the previous night to see if you spent lots more time at a high pressure for some reason.