I'll say it again. He was simply having a dream of a girl, his dream ended but instead of fully waking up he entered into Sleep Paralysis and saw the dark figure during it.
Science is amazing, what it has been able to discover and how it has enlightened the masses, but what science believed two hundred years ago (or even fifty) isn't what is necessarily believed by science today. In another two hundred (or even fifty) years our perception of the universe may be even more accurate and much different.
While I can't say for sure that I heard my wife scream in my dream or after I awoke. I woke up with a jarring pain and the feeling that someone had just grabbed my left arm with all of their might and the sound of my wife's scream echoing through my head.
It was 2AM and my wife (who normally sleeps on my left side) of course wasn't there. She was in the hospital where she had been for the past month, in a coma. I shrugged it off and went back to sleep.
I left fairly early the next day. I had to go out of town on business. My folks were visiting from out of town to watch the kids. I had seen my wife the day before at the hospital and she seemed like she was improving. She had spent almost as much time in the hospital as out of it for the past three years, so I didn't think a lot about it, except my whole left arm was totally numb.
I was on the road when I got the call from the hospital and they said that there had been a turn for the worst and that I should come back. So I turned around and went back to the hospital.
They had moved her to an isolated area of ICU and I sat there and held her hand. About 10 minutes after I got there she passed away. It was then that the doctor told me that she had suffered a stroke in the middle of the night, probably around 2am. They said that basically she had be brain dead from that point on and it just took a few hours for her body to catch up.
My arm was numb to the point that you could stick a needle in it and I wouldn't feel it, for the next six months.
It's been almost eight years since then, but I know that my wife reached for me when she was in pain and waited for me, to say good-bye. We are more than just conscious beings, what we are? That's up to each individual to decide and discover.
Peace & Love !