snoozysue wrote:Now I am a bit curious - can you see on Sleephead what stage of sleep you are in during the night?
No. We have no way of knowing what stage of sleep or for that matter if we are really asleep using the cpap machine.
The cpap machine simply doesn't score sleep stages and SH can't show us something that the machine doesn't record. Some members have the Zeo which is a little tool that supposedly does score sleep stages and Mark is working on incorporating ZEO data into SleepyHead but the data comes originally from the ZEO.
Now some people (like me) who happen to have documented OSA much, much worse in REM sleep can sometimes sort of eyeball a pattern which might be associated with REM stage sleep but we are just doing a loose correlation. Like I know that the normal time for REM to happen after sleep onset is 90 to 120 minutes and I often see events occur at this time frame and other times zero events. I just sort of assume it is REM sleep...I can't prove it though.
Regarding snores...I keep getting mixed up on which one means what. Let me go find Robysue's explanation...hers is better than mine. I do know that I have come to realize that my machine flags the snores from my Pug dog as mine when he sleeps with his chin on my shoulder. So super sensitive to sounds.
Edit to add Robysue's explanation from over in the SH Beta thread. I copied her response to be since I got the VS1 and VS2 mixed up again.
"SleepyHead's VS's are the ones that the Autos respond to by raising pressure. VS #2's are recorded regardless of whether the machine is in auto mode or fixed pressure mode. In Auto mode, the machine does not seem to respond to VS #2s.
The known differences between a VS and a VS #2 are what we can determine from the SH reports. They include these facts:
only the Autos record VS's; both Autos and fixed pressure machines record VS #2's
the Autos record VS's only when running in auto mode
the Autos increase pressure when the machine detects even a single VS, but pressure is not raised when the machine detects VS #2's
in Encore Pro, the VS's show up as tick marks on the wave form data, but the VS #2's do not show as tick marks on the wave form data; the VS #2's do show up in the Encore Events table in both Encore Viewer and Encore Pro.
But as to what actually distinguishes a VS from a VS #2 and why the Autos don't respond to the VS #2's is anybody's guess. I haven't been able to find out any information from perusing the PR web pages or by googling information about the PR Auto algorithm. Maybe it's the noise level? Maybe it's got something to do with the frequency of the vibrations?? Who knows?"