Grumpy Monkey Up All Night

Suzanne Lang ∙ Illustrated by Max Lang

Board Book

Published on Jul 14, 2026 | 32 Pages

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Hardcover

Published on Sep 29, 2020 | 32 Pages

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Ebook

Published on Sep 29, 2020 | 32 Pages

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Grades Up to Preschool
Ages 0–3

Everyone’s favorite New York Times bestselling Grumpy Monkey is back in this hilarious bedtime story about dealing with frustration when you don’t get to do what you want!

Have you ever stayed up way past your bedtime? Jim Panzee certainly has. Jim is going to a slumber party and there’s LOTS to do. Jim plans on bobbing for mangoes, going termite fishing, and of course staying UP ALL NIGHT!

But Jim gets more than a little frusrated when all the things he wanted to do go awry. One by one, everyone else falls asleep, while Jim is determined to stay up. How long will he last?

In this delightful addition to the GRUMPY MONKEY series, kids see what happens when you stay awake too late!

Bestseller

ISBN 9780593306215 (Board Book)
Published on Jul 14, 2026
Published by Random House Studio
Pages 32
Dimensions 7-1/2 x 7-1/2
Age Range 0-3 years
Grade Up to Preschool
Reading Level Lexile: AD530L | Fountas/Pinnell: L

ISBN 9780593119754 (Hardcover)
Published on Sep 29, 2020
Published by Random House Studio
Pages 32
Dimensions 10 x 10
Age Range 3-7 years
Grade Preschool - 2
Reading Level Lexile: AD530L | Fountas/Pinnell: L

ISBN 9780593119778 (Ebook)
Published on Sep 29, 2020
Published by Random House Books for Young Readers
Pages 32
Age Range 3-7 years
Grade Preschool - 2
Reading Level Lexile: AD530L | Fountas/Pinnell: L

Suzanne Lang

Suzanne Lang is the author of the New York Times bestselling Grumpy Monkey, as well as several other titles. When Suzanne is not working on books, she writes and produces children’s television.

Max Lang

MAX LANG is an animation director, storyboard artist, character designer, and illustrator. He co-directed the film adaptation of the picture book The Gruffalo, which was nominated for an Oscar and a BAFTA, as well as the Oscar-nominated adaptation of the picture book Room on the Broom, which has won numerous awards, including the Cristal for Best TV Production at the Annecy International Animation Film Festival.