I'm the opposite. I can't sleep unless I'm facing a wall. I sometimes roll over in the night and might end up facing away from one but the initial task of falling asleep requires facing the wall.
I have also notice that i do this feet rubbing thing as I'm falling asleep. I kind of rub the ball part of one foot against the side of teh arch of the other.Tough to explain. If I'm just laying down adn not sleeping, and am on my back, i tend to kind of rub my leggs against the bed ( think of a kicking motion but one side of my leg is always in contact with bed). Although i have no idea if these two are autism related. My sister ( who may not exactly be NT but is not really on the Autistic Spectrum) does it too. Dunno maybe its some learned behavior, although i don't know anyone else who does it
Dunno if its relevent, but its one of the things i noticed after learning about Autism/AS.
And I've know a few Autistic kids at camp who had unique requirements for falling asleep. Rocking, humming, and having white noise are all rather common at camp. Probably why I love working there
Ok that was a little off topic. Sorry bout that. So yea the last paragraph was more to say it could very well be AS related.