I contributed to one of these threads once.

I've done a lot of reading about insomnia over time, and the best fix for the problem I ever found was to work night shifts.

Some people use ionizers by their beds Ionizers can discharge excess electricity. Same principle that makes a walk on the beach so relaxing. Negatively-charged air coming in off the water discharges the + electrical buildup in your body. Could be excessive electricity in the neurons won't allow them to stop firing. Do a search for "ionizers" and see what you find.

Good luck.