Can't Sleep

Once again, it's after 1 in the morning and I have no interest in lying down. My brain just won't stop. I take my nicotine patch off every night as I leave work, otherwise I can go 24 hours. Right now, I'm stuck. I am sitting in the dark, waiting for my eyes to start hurting so that they won't keep opening once I lay down. Though I'm looking forward to it, I know that moment will only be the beginning of the fight toward sleep. My brain, though currently foggy, doesn't like to turn off. Why? I have no idea. But right now, I'm watching TV, typing a blog, chatting with 2 friends and tapping my fingers in between. Why does my brain need to constantly be on over drive? It's now 2 o'clock in the morning!!! I'm going to go insane!!
I've tried everything from lavendar pillows and warm milk to over the counter sleep aids. Valume is beginning to look pretty appetizing. If only I wouldn't get hooked. Which, if you know me, you know will happen. If you have anymore ideas, please, PLEASE, let me know.
Wishing for zzzZZZZs...