A youngster refuses to sleep because of the many animals that suddenly appear in their bed.The impish tot, with tan skin and two curly red poofs of hair, is having quite the night. First, there is a cow lounging on top of the covers. But Dad, brown-haired and tan-skinned, busy washing the dishes, is skeptical. "Cows don't like to sleep alone," he scoffs. "Why don't you go ask her to make room for you?" The child goes back to bed but returns to complain that a duck (with a dapper hat) has joined the cow and is now playing cards with her! And the cow is losing, which makes her grumpy. No one wants to sleep with a grumpy cow. But when Dad checks the bed, they are gone. "Maybe they're playing hide-and-seek now," suggests the child. These all appear to be classic bedtime stalling techniques, but the youngster really is certain there are animals in the bed! They just keep disappearing whenever Dad checks. But the tables turn when it is Dad's turn to go to sleep. Told through dialogue, the narrative is a little one-note, though very entertaining, and the expressive illustrations bounce it happily along. Martín's scribbly illustrations are reminiscent of Greg Pizzoli's style. (This book was reviewed digitally.)Bovines and bedtime combine for delightful silliness. (Picture book. 3-6)