One of the most beautiful things is to lie down in bed at the end of an eventful day. But who hasn't experienced it: sometimes sleep just doesn't want to come, despite all the tiredness. This is also the case with the boy who looks at us with awake eyes. «Then I'll just go for a walk,» he says to himself. And whoever he meets there! A giraffe, a koala bear, sperm whales ... They all have a good suggestion for what the boy could do to find sleep.