Well, after some discussion we're fairly sure that the bit about the fingernails to the stomach was as a result of being sleep-hugged.

But the rest of it? Yes, I feel insecure under the lack-of-weight. Being insanely hot and sweating under a blankie, I still get to sleep more easily than without one.

Although a damp cloth draped around my neck and torso works as a blankie substitute *grin*