Wiggletoes
Barley, a dog, sleeps peacefully on a futon. Her feet will wiggle gently from time to time as she dreams.
I always enjoy when Barley falls asleep in this particular position relative to me, for two reasons. First, I know that if she has fallen asleep with her belly exposed, then she feels both warm and safe. Second, and more importantly, her hip and shoulder sink into the soft substrate of the futon, suspending a couple of her paws in the air. When she inevitably starts to dream, her wrists hang very loose, and the fleeting muscle contractions as she runs in her sleep get magnified into toe wiggles that are visible from across the room.