Odd Dog Behavior

Both of my labs are active during their dreams. Cooter sleeps with us and stretches so far out during the night that my wife and I have no room on a king size bed. The other night I woke up to his back paw in my arm pit during one of his dream episodes (Can you say ouch, wtf???). Luga sometimes looks like she is in a full tilt horizontal run when she's dreaming.