This one, by the man himself, describes precisely how I felt as a child. I never, EVER let my feet hang off the bed. I've mostly outgrown that, though. I mean, I never let my feet hang off the bed ... but it's not because I'm scared.
"The thing under my bed waiting to grab my ankle isn't real. I know that, and I also know that if I'm careful to keep my foot under the covers, it will never be able to grab my ankle."