Insomnia? I'm sorry. Is it only a temporary thing? Or .. Sorry for prying.
I would stay up, If I could. I love staying up late.. But the laptop turns off at twelve.
Don't worry, it's a random thing. Sometimes I can sleep right away, other nights not until 2am. I haven't seen a doctor though, so it might not even be that. Could be stress... I don't know, haha.