"Sleep paralysis can happen randomly, and it often does a few times over a person's life. They may be laying in bed, either having woken up from sleep or just about to fall asleep, and find themselves completely paralyzed."

taken from http://www.dreamviews.com/community/...ad.php?t=65007


I've had sleep paralysis happen to me all of my life, and it was never partial. hopefully someone else can help you with this.