Why We Sleep

Why We Sleep: The New Science of Sleep and Dreams is a popular science book about sleep by the neuroscientist and sleep researcher, Matthew Walker. Walker is a professor of neuroscience and psychology and the director of the Center for Human Sleep Science at the University of California, Berkeley.[1][2][3][4][5][6][7][8]

Why We Sleep: The New Science of Sleep and Dreams
Why We Sleep book cover.png
AuthorMatthew Walker, Ph.D.
GenreScience book
Published3 October 2017, Penguin Random House
ISBN978-0-241-26906-0 (Hardcover)

Walker spent four years writing the book,[9] in which he asserts that sleep deprivation is linked to numerous fatal diseases, including dementia.[10] The book became an international bestseller, including a #1 Sunday Times Bestseller in the UK,[11] and a New York Times Bestseller.[12]


Why We Sleep has drawn criticism from Alexey Guzey, an independent researcher with a background in economics, in an essay entitled Matthew Walker's "Why We Sleep" Is Riddled with Scientific and Factual Errors [13], and by Andrew Gelman, a statistician at Columbia University, who in his article called Walker's purported removal of a bar from a graph a "smoking gun," commenting that it entered "research misconduct" territory.[14]


  1. ^ Cooke, Rachel (2017-09-24). "The shorter your sleep, the shorter your life: the new sleep science". The Observer. ISSN 0029-7712. Retrieved 2017-09-24.
  2. ^ Gray, Richard. "Are you a sleep procrastinator?". Retrieved 2017-09-24.
  3. ^ "Exploring the Necessity and Virtue of Sleep". 10 October 2017. Retrieved 4 May 2018 – via NYTimes.com.
  4. ^ "Why We Sleep by Matthew Walker — for a longer life, press snooze". Financial Times. Retrieved 4 May 2018.
  5. ^ "Why We Sleep". Retrieved 4 May 2018.
  6. ^ Moody, Oliver (30 September 2017). "Review: Why We Sleep: The New Science of Sleep and Dreams by Matthew Walker". Retrieved 4 May 2018 – via www.thetimes.co.uk.
  7. ^ "Everything you need to know about sleep, but are too tired to ask". 17 October 2017. Retrieved 4 May 2018.
  8. ^ "Why We Sleep by Matthew Walker - Kirkus Reviews". Retrieved 4 May 2018.
  9. ^ O'Connell, Mark (2017-09-21). "Why We Sleep by Matthew Walker review – how more sleep can save your life". The Guardian. ISSN 0261-3077. Retrieved 2017-09-24.
  10. ^ "A 'catastrophic sleep-loss epidemic' is killing us, warns leading scientist". The Independent. 2017-09-24. Retrieved 2017-09-24.
  11. ^ https://www.penguin.co.uk/books/295665/why-we-sleep/
  12. ^ https://www.nytimes.com/books/best-sellers/2017/11/12/science/
  13. ^ "Dozy Science". More or Less. 25 January 2020. BBC. Radio 4.
  14. ^ Gelman, Andrew (2019-12-27). "Why we sleep" data manipulation: A smoking gun?". statmodeling.stat.columbia.edu.