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Gray bars in sleepyhead overview USAGE graph
#1
Question 
When sleepyhead displays its overview tab, the usage graph color codes the bars. Most of them are blue, and those for days of less than 4 hours are red. That is useful, but then a few days display a gray bar. What is that supposed to mean? Over several weeks of usage, bars for some days have change from gray to blue as I have imported an SD card from my machine every day. One day three months back has remained gray to this very day. The most recent gray day was just 2 days ago.
What does the gray color indicate?
If anyone knows, I'd really appreciate finding out.


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#2
G'day Qualtech, welcome to Apnea Board.

I believe the grey nights are those when you don't have any detailed data, just the summary stuff. Did you leave the SD card out of the machine? Or wait more than a week between downloads? That's what causes grey nights for me.

If you check your daily screen for those dates, you may find there's only summary data.
DeepBreathing
Apnea Board Moderator
www.ApneaBoard.com


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#3
DeepBreathing,
Thanks for your timely and very helpful reply. Sorry if I should have known the missing detail data causes the bar to go gray. I did several searches here and other places as well, but even though the question seems to have been asked before, I found no clear and helpful answers until your reply.
Researching my machine use led me to notice that for the days in question I had put the SD card back into the machine locked after checking my sleep report in the middle of the night.
All it seems to take to get a gray bar is to have missing detail data for any session that shows up in the summary data.
That explains what I was doing to cause the gray bars. When you make a mistake it is nice to have an indicator like that to help you avoid repeating the same mistake. Of course you have to know what the indicator means in order to benefit from it!
You folks here at ApneaBoard are doing great things to help us all over the little bumps in the road we encounter.
I will be sure to donate as soon as I can.
Keep up the good work, and again, Thanks.
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