Not sleeping... again

Sighs. Two nights in a row I can't sleep. What the heck is wrong with me? It seems that a number of my friends are having problems sleeping these days. I know I have this underlying level of stress in my life, but not being able to sleep through the night is just not helping. The thing is, right now I'm tired. I know that once I lay down 7 o'clock will be here in moments. Feh.