While you brush your teeth and turn out the light, animals all over the world are getting ready for bed in their own unique ways. Otters snuggle under seaweed blankets, plump walruses use their throat pouches as pillows, and just like putting on pajamas, parrotfish cover themselves with a coat of slime before bed. Drawing on scientific research, this nonfiction book for young readers playfully compares the ways humans and animals prepare for a good night’s sleep. On one page, a child dozes during a car ride or cuddles up to their parents in bed. Flip the page, and readers will delight in discovering how other creatures catch some z’s. Vibrant collage illustrations bring color and humor to the fascinating facts about animals both familiar and unusual. With lively descriptions of each animal’s bedtime routine, is a playful introduction to STEM—and an invitation to sleep!