How do I know what's normal sleep?

[GoogleCodeExporter]

The app works fine, and I've been using it a lot recently, but what do the 
results actually mean? I haven't a clue if my hypnograms are good or bad. I 
just have a series of spikes. Is there a way you can analyse the data, look at 
peaks and total deep sleep time and say if the sleep was good or bad? Failing 
that, just a sample plot of healthy sleep and unhealthy sleep would at least 
give me some clues.

Original issue reported on code.google.com by guffmeis...@gmail.com on 25 Feb 2011 at 10:30

[GoogleCodeExporter]

On the same screen as the graph, above the graph on the right, is a button that 
says "analyze" (I think - I don't have the app in front of me right now) this 
gives some additional information, and a "sleep score".  I'm not sure what goes 
into the calculation of the sleep score (secret sauce of the developer).

Original comment by pe...@iswc.us.com on 25 Feb 2011 at 3:26

[GoogleCodeExporter]

I have collected no metrics from users ' sleep, so I honestly can't say what is 
"normal". I've known for awhile that the app needs deeper analytics into users 
sleep so that it can provide tips as well. Its not an easy thing to go about 
doing, but it will be one of the next big feature upgrades. I'm involved with 
two other projects right now, plus full time school, so I'm having to split my 
time quite a bit.

It may be worth noting that average healthy sleep for most age groups is 7-8 
hours. Also, time to fall asleep should be as close as possible to 
instantaneous :-) . As for cycles, check out 
http://en.wikipedia.org/wiki/File:Sleep_Hypnogram.svg 

Original comment by jondwil...@gmail.com on 25 Feb 2011 at 9:22

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Original comment by jondwil...@gmail.com on 14 Aug 2011 at 5:09

• Changed state: Done