I usually just head to bed without anything. I have, in the past, listened to audiobooks to fall asleep. I usually have a story going in my head, and I add to it every night when I go to bed, a different scene, a piece of dialogue here or there--moving the story forward...always with the intent of someday writing it down.
When my oldest daughter was a girl, she used to love to watch Young Frankenstein. And every time we out it on, she feel sound asleep. She's in her 30's now and I wonder if that movie were to play, if she would fall sound asleep still!