I came across the Lifestream of Acetuk and saw this interesting post with his sleep pattern:
A little more sleep but still erratic -
Sleep statistics for 13 – 14 Jan (Thu).
Went to bed / woke up: 01:34 / 06:21
Total time: 4h 47m
It also included this image:

Turns out he is tracking his sleep patterns with an iPhone app called Sleep Cycle. Anyone try this out? It looks interesting.



