This is going to have to take into consideration that I am Schizoaffective and was more than likely having an episode at the time. Possibly.
Yet, I swear there is or was something in my house at the time and it wasn't all my mentality alone.

I've looked it up and they are referred to as Shadow people.
Towering, shadowy people with no features besides darkness and a humanoid shape.

Often, as I would try to go to bed I would doze but not be able to go to sleep, experiencing something like sleep paralysis when I tried to sleep. Then I would see them, small at first and fluidly moving around the walls. I knew something was there. Some nights they would stand over my bed, watching me.

But the biggest encounter was a time when I was in bed and felt like I couldn't get up, like something was keeping me from getting up and I felt the presence of something there. Just standing there looking down at me. So I turned to look to my right, because I was sleeping on the right side of the bed.

I see this thing, vague and obscure, but there. It's looking at me, I can sense it. I know it's communicating with me, trying to get my attention or maybe just waiting for me to really hone in on it's presence.
When you begin to fall asleep, you often experience a hum in your ears or a deafening silence. This was happening but I wasn't falling asleep, my eyes were heavy as hell though.

I wanted to look away from it, but I could only do it for a while, looking at the wall across my bed, a mostly empty wall where the light from my window fell, to sort of distance myself from this thing, but eventually I would just stare back up at the ceiling and to the right again.

First, it puts it's hand on my stomach. This feels like nothing more than weight, but an obvious gesture to prove it's physical existence.
Of course I was afraid at the time. Horrified. It's something I'll never forget.
But I don't look away from this thing because I'm paralyzed by it.

I look at the wall across my bed and just stare, and I feel it looking in the same direction as I am, we're both looking at the light from my window.
It says nothing about the light or the window or me, though.

Without looking away, the both of us, and to my extreme surprise, it asks me what I would do if my mother was killed.
Not if she died, if she was killed. This was the furthest thing from my mind was anything or anyone from this room, so I was plainly shocked.
The rest faded out like a dream. I remember it was a very short time this all happened. I feel like after this happened I had "drifted to sleep" but I actually sat up promptly and turned the light on.

I realize in hindsight this thing had no true hostility to me at all, maybe my mother in it's question, but to be honest I felt it's tone was more of apathy than anything else. Not apathy to me, but my mom. I'm not sure whats it was trying to say, or just messing with me, or trying to get a response. I'm going to guess the latter.

I have since been on many medications to settle my hearing and seeing things, because I was already dealing with voices and sounds that weren't there. Mostly laughter. An emotionless, repetitive laughter that seems to be mocking you. This is what really haunted me about seeing shadow people; accompanied noises and voices that are sometimes inaudible and senseless.

If you asked me to believe in supernatural occurrences, I'd be very skeptical.
But in having this experience with these shadow people, I would probably have my skin crawl at the thought of their existence