And I should have been sleeping, too. It was the middle of the night for me, too. One of those nights where I woke up and was wide awake. Went back to sleep eventually but now I still feel tired. :)
That happens to me every once in a while. I find that when I lay there awake for an hour and sleep doesn't come, I just get up and do something like watch TV or read. Unfortunately, when you do get back to sleep, you don't feel rested when you wake up again.