Often times a movement wakes you up or as soon as you are conscious you are able to move. Waking up and not being able to move is quite a shocking experience.

Often times a movement wakes you up or as soon as you are conscious you are able to move. Waking up and not being able to move is quite a shocking experience. Happened to me once and I thought I was dead. I was very afraid because I knew someone in the room could hurt me and I couldn't do anything about it. Of course, the same is true if I was unconscious and sleeping as well, but somehow, being awake and unable to respond and being aware made it terrifying.