Little Mouse and Big Mouse share a room. Little Mouse hears every little thing and can't sleep because the sounds are too scary! Can't Little Mouse please climb into bed with Big Mouse? Big Mouse wants to say no, but he might not get any sleep at all if he doesn't give in to Little Mouse!
Bobby can't sleep because he's lonely; when he peeks outside after dark, he finds some enormous new dinosaur friends to play with, who are mostly nice, but who just might decide to make Bobby a midnight snack!
Stella and Sam are supposed to be in bed, but where in the world is Fred? Sam can't sleep without Fred. Stella and Sam get out of bed to take a look, and find Fred in the last place they expected to find him. Readers get to wonder what or who Fred is until the end of the story . . . is Fred a toy? A pet? A special pillow? A second trip through the book is fun, to spot all the animals hiding on every page, like an owl, a goose, and a pig.