I'm lying in my bed at the moment and Tillo is lying next to me on the floor. He's a sleep, but started to howl/yodel just 5 min ago.. He looked at me (but didn't really see me) and went back to sleep.. I've heard him making funny noises before, but a real long howl??? 
No…
I think he maybe had too much to do this weekend. 
Have your pups ever howled in their sleep?