Well, I can't promise you this is normal... but it has happened to me many, many times. I don't move when I sleep (I start flat on my back and wake up there without so much as a ruffle in the covers...), and I usually don't realize there is a problem until I go to turn over and shut off the alarm, and end up smacking myself across the face instead. It's like having a rubber arm from the shoulder down and have no control over it whatsoever--an awful feeling, I must say. I have no ideas... so if anyone figures something out, let me know what's going on!
'Erie (-:

