http://en.wikipedia.org/wiki/Delayed_sleep_phase_syndrome http://en.wikipedia.org/wiki/Delayed_sleep_phase_syndrome Maybe it's this? It's very common among hac

http://en.wikipedia.org/wiki/Delayed_sleep_phase_syndrome http://en.wikipedia.org/wiki/Delayed_sleep_phase_syndrome Maybe it's this? It's very common among hackers, and easy to confuse with insomnia. Well, it's effectively the same if you have to wake up early.