I have a reaccuring dream. I will hear a loud scampering noise, and then something about half my size presses down on my belly. I feel as though I am awake, but I cannot see anything there. I envision it to be a little animal (perhaps a "demon" of sorts). When this happens, I open my eyes, and feel as though I cannot move. I am frozen in space and also feel as if I cannot breathe. I look over to my kitties, and they are staring at me wondering if all is okay. After a few moments, I am finally able to move again and the sensation disappears. Has anyone heard of something like this before and if so, is there any explanation for it?