OK, enough of the silly remarks.
Yep, caffeine in the pills is a hard thing - especially if a person is is really effected by caffeine. (I have a huge tolerance to caffeine - it doesn't phase me.)
As far as relaxing, Spider-man is basically right - knowing is half the battle. When I can't sleep I find that my mind is running at full speed thinking abour anything and everything. My key is to learn when I am doing that and force myself to stop. Instead of letting my brain run around like a runaway train - I force myself to stop thinking on lots of stuff and focus on one thought - 'sleep' I just keep telling myself that (without allowing any other thoughts to take control.) If it is really bad, I will catch myself quite a few times, but everytime I catch myself, I farce that thought back into my mind. Then as the brain winds down, I fall asleep.
RU