Well I have installed the sleep cycle application. But I had not used it before as I was playing a game that required me to use the iPhone late at night. But now that is over. So I started using the program last night. I was not so well last night and I go up with a headache. So you can see it affected the graph. Though I woke twice. It does not seem to have noticed the first time I woke.
Analysis made by Sleep Cycle.
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