I can only sleep in short burst unless days of no sleep at all has happend. I just have too active of a mind, it never stops. I think about anything and everything. When I try to clear my mind another thought comes to mind and I want to work it out, and so on. I have got up in the middle of the night to sovle a math problem becuase it woke me up, lol
I was thinking of Brokeback Mountain the other night when I tried to sleep (after just watching it) and it somehow kept me up way too long. =/