I started using SleepyHead from day one (actually installed it before getting my machine) so I have been examining the charts every day. It didn't take long before it became clear to me based on AHIs that 10 was not cutting it. I don't know how they came up with that number. I realize some nights can be better or worse than others, but I find it hard to believe that all was magically cured at a pressure of 10 like the report suggested.
I have had the machine in auto mode for about a week and a half now and based on where it seemed to spend the most time, that is how I am at my current pressure range of 16-20. The thing is, I still can't seem to get an AHI below 2.x, and it is usually closer to 5 or 6 it seems. Also, the machine seems to hover between 17 and 20 and often holds around 19-20 for a while.
This is making me wonder if 20 is not even enough for me, and if that is the case I guess I'll need to do another study at some point. More importantly to me though... do they even make machines that go over 20? This seems to be the upper limit of many machines. Can I never expect to see AHIs less than 1 if my pressure is maxing out at 20 and I still have many apneas throughout my sleep?
I am having occasional problems with leakage, which I know can increase AHIs and in some cases "hide" them since the machine may not know what's really going on. Honestly my two lowest scores below 3 were on nights with significant mask leakage which leads me to believe the AHI numbers may be erroneously low. But I have also had nights with pretty minimal leakage and at best I have had a 5 or 6 AHI on those nights.
For now I am looking into different mask sizes and am also going to try some nasal pillows, but I am really wondering about the pressure.