Everyone knows about animals that hibernate in the winter. But it's time to discover animals that sleep all summer long! All science classrooms discuss animals that hibernate during winter months, but few know about animals that estivate-a prolonged sleep during hot or dry periods. Dual layers of text awaken readers to the reasons estivating animals become dormant-whether it's because warm weather threatens food supply or to avoid increased body...

Discusses the mechanism that creates night, the history of astronomy, the night sky, what happens in different habitats and to different animals when night falls, sleep, and dreams.

"Mama and Mommy would like Sweet Pea to settle into bed, but it's not quite time. Even though the bed is fluffy, it's not as snuggly as curling up like a pig in the mud, or as spacious as sleeping in the wide ocean like a blue whale. It's not as fun as sleeping high up in a tree like a koala, or hanging upside down like a bat. And it's definitely not as relaxing as sleeping standing up, like an emperor penguin. But after mimicking all the ways different...

Unable to fall asleep, a little boy journeys from cave to sea to mountain peak, trying unsuccessfully to imitate the sleeping habits of his animal friends, until he finds the perfect place to lay his tired head.

In rhyming text, every baby animal has a warm, safe place to fall asleep when bedtime comes.