Sam and Gus
Sam is an owl, who awakens at night, and is in search of a playmate. The only trouble is that he is waking up, while everyone else is going to sleep.
Eventually Sam meets Gus, a firefly, and they become fast friends. (They even have an adventure together).
"And night after night, when the moon comes up, Gus the firefly comes back to play..."
Very nice...