Every night I stay up past 12, past 1, etc. Not because I'm not tired. Not because I want to tweak in these social networking sites. Because I'm tired, I want to sleep. But I can't because my mind runs like crazy. It over things, over analyzes things that I don't want to think about. So I purposely keep myself awake and tire myself out so that when I finally lie in bed, I fall asleep and my thoughts don't keep me up.