Didn't matter. Jab jaisa mann kiya :p. There have been days of just 4 hours sleep. And there have been days of 14hours sleep :p.
A general trend has been to sleep till 12-1am and wake up at 8am.
All I had made were some rituals (Neyawn's advice only). Like "doing something productive within 30mins of waking up". This made my entire day productive. :)