Searching for Sleep

Somewhere deep in a dark cave sleeps a family of black bears: he father, the mother, and four cubs. But wait! One of the cubs isn't sleeping after all ...

In this adorable picture book, a little bear cub is sure that sleep must be hiding from him. He searches under his sibling's beds, but doesn't find it there. It isn't flattened under the rug, or hiding under the sheets either. Where could it be?