When I was a kid and couldn't get to sleep, I would walk into my parents room and announce "I can't sleep." At which point my mom would instruct me to drink a glass of water, lay down, and just be still.
It didn't work then and it doesn't work now.
And I'm haunted. I'm rolling over in bed constantly and thinking to myself that I've recently missed the birthday of a close friend, but I can't remember who. If it's you, let me know.