Lack of light

I get sleep paralysis pretty regularly, it is not a big deal to me anymore, it would be mildly traumatizing as a child, but I like to play around with it now  cause it is interesting.

But last night I had a particularly powerful experience though, and for the first time in quite a while I felt legitimate terror.

As I've gotten older I've started hallucinating while the sleep paralysis takes effect, shadows will form objects and start talking, things like that, but I am not sure what happened last night, I seem to remember thinking there were ghosts filling my room and I wanted to move so badly, but I couldn't move and every time I tried waves of terror would wash over me, I was so scared. 

...and then the oddest sensation of my life. Sleep paralysis is caused because the body still thinks you are still REM sleeping. As I tried to get out, it felt like my brain was pulling me into a dream world, while I tried desperately to stay conscious and in the real world. I then felt my brain almost switch back to reality and allowed me to move. It was really intense and I just laid there gasping for air for a while.

u_u, I wish I could just fall asleep.