yea has happened to me and its usually like the way u describe..but i dot believe in paranormal shit even though the weirdness ive experienced. one time i was skipping school back in 10th grade..i was laying on the couch and it was hot from the heat of the coming summer months..somehow i passed out..i was later awakened by a sound..and when i couldn't wake up i freaked out cuz i heard someone walking around me...it was weird as hell