I would like to start off by saying I had a rough childhood growing up. I don't know if this experience has any relevance to it, but I know this I was never the same.
I was 15 when I had this experience, the year 1988. It was around 9 or 10 p.m. I was getting ready to turn in for the night, for I had school the next day. The layout of my room was like this. I had a window at the foot of my bed which was closed, no light could come in from the outside; also a window to the right of my bed, the head of my bed was right beside my bedroom door. The bathroom light would stay on through the night for my cousin. This particular night I left my bedroom door open.
I was just laying there staring at the foot of my bed. To my surprise this black shadow thing rose from the floor up, standing right there staring me down. I was terrified... This thing stood at least 6 ft tall, darker then the room itself. I could see the outline of what looked like a cowboy hat or fedora type. He also wore a trench coat. I could tell this was a male entity because he said, "You know who I am." He sounded flat out terrifying!
I did not stay around, I jumped out of my bed screaming all the way to my Aunt's bedroom door. I was so scared, banging on my Aunt's bedroom door. I told my uncle that something was in my room. Of course, when he walked me back to my room and turned on the light nothing was there. I slept with the light on all night!
I fear that his appearance was something bad. The first thing that popped into my head was devil or death. I didn't have anything else happen while living at my Aunt's which was good.
I had other experiences which I will save for another time. I know that this entity has been seen by other people in the world. I am just not wanting to see it ever again!