[kleevr]

I'll second this. The method I use is to count to five, then return to 1. You can sort of gage where you're at, as you'll catch yourself hitting 6, 10, 12 before returning to one. This is a good sign, just don't get too excited about the fact that you're about to fall asleep...

(Also, recently I had only been awake 8h that "day", but needed to get to sleep "early" in order to get a full 8h of sleep before a client meeting the next morning. So, I made Mac&Cheese with an entire stick of butter (~1500cal + 90g fat). This seemed to slow my heart down and put me out like a light. Though this method has obvious health implications, I'd be lying if I said it didn't work like a charm... that one time.)