Just read an article on this. One time when I was about 25, living alone in an apartment. I awoke ( yes I was coherent) and sensed something I looked near the bedroom door and saw what appeared to be the shape of an older man. I could see his red flannel shirt, he had a tool belt around his waist like repaimen or plumber wear, the thing is I could see right through his body, He was just looking at me, I felt no fear or anything I blinked looked again and he was gone. Arrording to the article i read a high percentage of people have had atleast one encounter in their lives, have you?