Share this Page Discover Like Books Books similar to The World Never Sleeps Other books by Natalie Rompella Carol Schwartz Other books with same Classifications Nonfiction Science Other books with same Subjects Animal behavior Nocturnal animals Juvenile Nonfiction | Animals | Insects, Spiders, etc. Animals--Habits and behavior Juvenile Nonfiction | Animals | Nocturnal Children's Books/Ages 4-8 Nonfiction Animal behavior--Juvenile literature Nocturnal animals--Juvenile literature Other books with similar Lexile levels Lexile Range 500L - 850L