John Henry Fuseli's The Nightmare.
This is exactly what happened to me last night at around 3:AM. I was fucking terrified. I woke briefly out of my sleep only to feel bound to my bed. Do you know how ridiculously terrifying it is to not be able to get out of bed at the moment you intend to jump up? Then when I finally arose, I looked over to what appear to be a dark figure in the fetal position in my doorway. Often in Black culture, it's referred to as "the witch riding your back." Not the dark figure on the floor though. I reallllly don't wanna know what the kooky shit was. In psychological terms, its called sleep paralysis. The 80's baby in me thought to call Ghostbusters. 555-GHOST. Me being a Christian, i prayed. And the little girl in me called mommy. I didn't go back to sleep. I'm so dreading it tonight. :-/
Pray for me?