Resmed Airsense 10 Only Recorded Half of Last Night

As I mentioned in another unrelated thread, my Airsense 10 only recorded the last 4 hours of my 8+ hour sleep session last night. Any ideas as to what I might have done to cause this? It hasn't ever happened before. The only difference in yesterday was that I got a new mask and did some brief Mask Fit experimentation in the afternoon. I turned on the machine to go to sleep at about 10:30 p.m. and it began to record at about 2:00 a.m.

Comfortably Numb wrote:As I mentioned in another unrelated thread, my Airsense 10 only recorded the last 4 hours of my 8+ hour sleep session last night. Any ideas as to what I might have done to cause this? It hasn't ever happened before. The only difference in yesterday was that I got a new mask and did some brief Mask Fit experimentation in the afternoon. I turned on the machine to go to sleep at about 10:30 p.m. and it began to record at about 2:00 a.m.

Is this based on a Sleepyhead report or Myair or????

TASmart wrote: Is this based on a Sleepyhead report or Myair or????

In his other thread (about the new N20 mask) he says both SleepyHead and MyAir.

Comfortably Numb wrote:As I mentioned in another unrelated thread, my Airsense 10 only recorded the last 4 hours of my 8+ hour sleep session last night. Any ideas as to what I might have done to cause this? It hasn't ever happened before. The only difference in yesterday was that I got a new mask and did some brief Mask Fit experimentation in the afternoon. I turned on the machine to go to sleep at about 10:30 p.m. and it began to record at about 2:00 a.m.

Have you checked the time and time zone settings on your machine?

If you check 'last' night's results after noon today you'll only see a few hrs recorded because machines operate from noon to noon, so you need to look at your results prior to noon.

The noon to noon thing only affects the LCD screen on the cpap machine. Doesn't affect the data reported by SleepyHead no matter what time you download to SleepyHead.
Unsure about when MyAir updates since I don't use it.

If the clock or time zone is the problem...wonder why all the other reports have the time correct????? Assuming the clock hasn't been touched on the machine and the other SleepyHead reports are correct then it isn't the machine clock.

If the machine is recording no usage (not even summary hours of use) at all from the bedtime of 10 ish to 2 AM where the data starts showing up then there's something wrong somewhere.
Assuming of course aliens didn't come down and mess with the clock...so wouldn't hurt to verify that the clock and calendar is correct.
I swear they came down and messed with mine on 2 separate occasions.

MyAir reporting isn't tied to the SD card being in the machine but MyAir website has a history of not updating promptly.
When MyAir and SleepyHead both are reporting less hours used than were used...something is going on. It would not be totally impossible for the problem to be in the machine's writing to the internal memory. It would be rare though...but not totally impossible.
If no logical reason can be found and it happens again and no logical reason can be found...probably should be contacting the machine supplier.

I would need to see the SleepyHead report ....if there were multiple sessions involved and some how the session from 10 ish to 2 AM got turned off...that would explain SH not showing it and someone being new to SleepyHead might have accidentally turned off something....I don't know that is what happened but it is possible if multiple sessions are involved.

Finally...when in doubt there's always ResScan for confirmation of anything. PITA but it's available....Windows only though.

Thanks everyone for your help. I've been out for a few hours and just took a fresh look at things. There have been some changes in the data since early this morning. I'm aware of the delay in getting the data transmitted to My Air. It's usually mid-morning before it shows up. It seems now that My Air is in total agreement with what happened last night. Sleepy Head is also in total agreement except for one thing. The SH graphs don't begin until around 2300 hours and stop around 0600 when I turned off the machine. The SH statistics totally agree with My Air (usage hrs = 8.18; events = 1.0) but the SH graph shows nothing happening until 2300 hours. Time settings, etc. on the Airsense 10 are correct. So maybe it's an issue with the SD card. Hope this narrows it a bit. One more thing. The My Air data was, in fact, available early this morning but it was incomplete showing that I only had 30% compliance!! At that time, the SH data was in agreement. But now it is as described above. Everything OK except the SH graphs. thanks again

Well it appears as though I did something last night that caused the graphs to have 50% unused space this morning, making it look as though it only recorded 1/2 night. In reality, the graph now shows that it started recording at 23:00 and stopped at 6:30. But I have a huge blank space from 16:15 to 23:00. Never had that happen before. Every morning, the entire graph is filled in.

16:15....so about 4:15 PM you fiddled with the machine or was it when you were fiddling with the new mask and probably briefly turned the machine on and back off again???
This creates the big blank spot between 16:15 and 11:00 PM (23:00).
A very short lived session around 4:15 PM.
Not a big deal. You can turn that session off and get rid of the big blank space if you wish....
Look over on the left side statistics and click on the scroll bar and go way down to the very bottom of the statistics to where the sessions are shown with green/black coloring.
Double click the mouse on the first session showing 4:15 (16:15) time frame to change it from green to red. This turns off the reporting of that short session and will remove that little bit of time from the calculations and clean up the graphs.

Pugsy wrote:16:15....so about 4:15 PM you fiddled with the machine or was it when you were fiddling with the new mask and probably briefly turned the machine on and back off again???
This creates the big blank spot between 16:15 and 11:00 PM (23:00).
A very short lived session around 4:15 PM.
Not a big deal. You can turn that session off and get rid of the big blank space if you wish....
Look over on the left side statistics and click on the scroll bar and go way down to the very bottom of the statistics to where the sessions are shown with green/black coloring.
Double click the mouse on the first session showing 4:15 (16:15) time frame to change it from green to red. This turns off the reporting of that short session and will remove that little bit of time from the calculations and clean up the graphs.

You are always so spot on. Thanks! I must have activated two short sessions yesterday afternoon when I was road testing my new N20. When I thought I was smothering! All is well now with the N20 (and Sleepy Head graphs).