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Children's Nonfiction Anatomy & Physiology


The Surprising Science of Sleep

by (author) Tanya Lloyd Kyi

illustrated by Valéry Goulet

Kids Can Press
Initial publish date
Sep 2021
Anatomy & Physiology, General, Psychology
  • Hardback

    Publish Date
    Sep 2021
    List Price

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Where to buy it

Recommended Age, Grade, and Reading Levels

  • Age: 11 to 14
  • Grade: 6 to 9
  • Reading age: 11 to 14


From award-winning author Tanya Lloyd Kyi, an eye-opening look at the science of sleep --- covering everything adolescents could possibly want to know about a subject that's suddenly keeping them up at night!

For something that all humans do for hours every night, sleep is not that well understood. One thing we do know, though, is that sleep is crucial for our health and happiness. Here's a highly readable and fascinating look at why sleep is so important, what's happening in our bodies while we're sleeping (it's a lot more than you think!), and how the science of sleep research has evolved. It probes some of the mysteries about sleep, like why we need sleep, why we dream, and even how long we can go without sleep! It also explains why teens and tweens aren't getting enough sleep --- and what school principals can do about it! It's a deep dive into an intriguing topic that's anything but a snore!

Bestselling author Tanya Lloyd Kyi's engaging yet comprehensive text covers everything a middle schooler (or an adult!) could want to know about the science of sleep --- and then some. Sleep is a topic that most adolescents are interested in, since their sleep patterns have recently begun to change, and getting enough sleep is now more important to them than ever before. Sidebars and boxes full of fun facts break the text into readable chunks. There are terrific curriculum links here to life science and the human body as well as to health. Fully illustrated with a light touch by Valéry Goulet, this unique and appealing book makes scientific content accessible and fun.

About the authors

Tanya Lloyd Kyi claims to be a peaceful and non-threatening person, despite having written three books about fire and one about poison. She has never set a building aflame, handled dynamite, or intentionally poisoned anyone … although a suspicious number of friends did have stomachaches after eating her Christmas party meatballs one year.Tanya writes both fiction and non-fiction, often choosing topics related to science, pop culture, or social history—or a combination of the three. She enjoys combining factual research with intriguing narratives, or the life stories of interesting folks.Tanya began her writing “career” as a poet in high school, producing pages and pages of really bad poems that her mother adored. Her love of writing led to the University of Victoria, where she took creative writing and English. Tanya’s early writing jobs were as a newspaper reporter and brochure writer for the government. She also worked as a dishwasher, busgi

Tanya Lloyd Kyi's profile page

Valéry Goulet is a French Canadian designer, illustrator and design instructor originally from Quebec. With a master's in interaction design from Université Laval, she’s worked with global brands and agencies, and her illustrations have garnered attention far and wide. When she’s not illustrating, Valéry instructs for the Visual Communication Design program at the University of Alberta and the Bachelor of Design program at MacEwan University. She lives in Edmonton.

Valéry Goulet's profile page

Editorial Reviews

... useful facts that are pertinent to teens and tweens and encourages them to make sound decisions based on the science of sleep.


... this title supplies the answers to many questions by drawing upon valid research to back up the answers.

School Library Connection

Solidly research based ...

Kirkus Reviews

Full of valuable information, Snoozefest is both educational and entertaining. Definitely not a snoozefest.—CM Magazine

A fun choice for browsable nonfiction shelves and reports.

School Library Journal

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