I completely relate. :) I've been dealing with insomnia now for two months because of the stress with mom's illness.

One of the things that helps me is to memorize a particularly long set of lyrics or verses from some slow song or poem or something and repeat it in your head to yourself at night over and over. One of my favorites is the lyrics to "The Wreck Of The Edmund Fitzgerald" It becomes so second nature that just repeating it mentally in my head lulls me to sleep, usually somewhere around halfway through the song the second time around.

Don't pick a song that is too exciting or bouncy though, that fails. ;) Things like "Vincent", or "Piano Man" are what I mean. I did try it once with American Pie, but I can't seem to ever get those verses memorized in the right order.