Quote Originally Posted by Snowboy View Post
You're not supposed to let your mind wander. If you do, that doesn't allow your mind to fall asleep since there is still conscious activity going on. You're supposed to keep your mind as clear as possible so that your mind can fall asleep and you transition to a dream. Think of it as beginning meditation. You won't be perfect, but you should try to keep your mind as clear as possible.
Meh...I've never fallen asleep from having a clear mind. Letting it do its own thing is the most successful method I've found so far for getting to sleep. :3