WTF
"Some of the statistics you came up with ("you sleep between hours this and that") - you have no way to grab them in 2-3 minutes without posting lists. Also they are full of assumptions. You can't know sleeping times unless that person specifically tells you they go to sleep, like Alter did, and that could very well be just to throw you off."
Seems like a pretty clear sleeping interval to me: (silkthread)
(UTC time and the numbers mean from that hour to the next e.g. 23 means from 23:00 to 24:00 and 0 means from 00:00 to 01:00)
The posts are normalized so that the peak of the post is 1 so every post count has been divided by the max post count.