I have this dream that i am laying in bed when i hear a noise and awake and for some reason in the middle of the night i am drawn to the closed curtains of my bedroom window! as i pull open the curtains on the other side of the glass is a man standing all dressed in black wearing only a ski mask <balaclava> all i remember seeing is teeth and eyes staring at me!! and every time at that point i awake from my dream. ive had this dream quite a few times in the past and sometimes the surroundings i am in are different. but it is always night time!! why does this dream re occur!
also does anyone know why sometimes when i sleep my hearing and thoughts awake but i cannot move my body no matter how much i try...its as if i am paralised although i can hear things going on around me. please help.

could just be overactive imagination has found a hook (something that scares you) and replays it any time you are stressed.

Could be that some one scared you like this when you were a little kid.

Could be alien abduction issues (lotsa people got them...maybe real, maybe not, who are we to say)

Could be premonition, someone breaking into house..

Could be Dr. Seuss...where the cat dissappears and leaves only his big white smile hanging around..that image scared me when I was a kid, thinking about it now.