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Cover of Why We Sleep: Unlocking the Power of Sleep and Dreams by Matthew WalkerWhy We Sleep: Unlocking the Power of Sleep and Dreams
Modern · Nonfiction, Science, Psychology

Why We Sleep: Unlocking the Power of Sleep and Dreams

by Matthew Walker
2017 · 360 pages · Nonfiction
Lifetime bestseller
≈ 9 hours to read · about 3 weeks at 30 minutes a day

What it's about

Neuroscientist Matthew Walker explains what scientists have learned about sleep: why we need it, what happens in our brains and bodies when we don't get enough, and how sleep affects learning, memory, mood, health and how long we live. He ends with practical advice for sleeping better.

Why it's worth reading

It became an international bestseller and changed how many people think about rest. It's clear, fascinating and persuasive.

You'll love it if you liked

Good to know

Some researchers have criticized a few of its claims as overstated. It may make you go to bed earlier.

By the numbers

75.8Must-Read Score
  • Readers94 out of 100 · counts 42%
  • Critics0 out of 100 · counts 14%
  • Bestseller35 out of 100 · counts 34% (its stronger lane)
  • Buzz0 out of 100 · counts 10%

Critics and Bestseller are two ways to earn a place: a book's stronger one counts more. Buzz rewards recent bestseller weeks and prizes, so older books start at zero. The parts combine into the Must-Read Score, shown on a scale where the best book we found scores 99 and the last book to make the ranking scores 50.

Where it ranks

Reads as

Thought-provoking, Practical

How we rank

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Explore the best-of lists

All 36 best-of lists →

Quick answers

Is Why We Sleep: Unlocking the Power of Sleep and Dreams worth reading?

Yes. It became an international bestseller and changed how many people think about rest. It ranks #724 of the 2,816 books in our ranking, with a Must-Read Score of 75.8 (the best book we found scores 99).

What is Why We Sleep: Unlocking the Power of Sleep and Dreams about?

Neuroscientist Matthew Walker explains what scientists have learned about sleep: why we need it, what happens in our brains and bodies when we don't get enough, and how sleep affects learning, memory, mood, health and how long we live. He ends with practical advice for sleeping better.

How long does it take to read Why We Sleep: Unlocking the Power of Sleep and Dreams?

About 9 hours (360 pages), or about 3 weeks at 30 minutes a day.

What should I read after Why We Sleep: Unlocking the Power of Sleep and Dreams?

If you liked it, try Outlive: The Science and Art of Longevity by Peter Attia with Bill Gifford, The Body Keeps the Score by Bessel van der Kolk or Thinking, Fast and Slow by Daniel Kahneman.