I was firmly tied to the bed

I was awakened by a feeling of unfreedom. I could not move hand or foot. Some walked, I realized the absurdity of what happened: I was firmly tied to the bed, my hands and legs were divorced in hand! No, not a dream, it was something else. It seemed that on the surface, that I was lying, repeated bending of my body, what it was, I do not understand. I tried to move, but it was impossible, my hands and feet were tightly linked, if not more, and I have not experienced, but fixing kept me so securely that the twitching was useless.