book hack

Why We Sleep

Matthew Walker

5 mins

3 key insights

Visual, audio & text

Sleep expert Matthew Walker shares his outlook on the meaning, role, and importance of a good night's sleep for a healthy and fulfilling life.


Why We Sleep

Why We Sleep

by Matthew Walker


We spend approximately one-third of our lives asleep. But how important is it to our health beyond the obvious? A lack of sleep can increase our risk of developing physical illnesses, and impact our perceptions and learning abilities.

Matthew Walker is a scientist and professor of neuroscience and psychology at the University of California, Berkeley. His book, Why We Sleep: Unlocking the Power of Sleep and Dreams, focuses greatly on mental health and the understanding of human sleep.

In this Uptime Hack, find out how Walker unravels the impact quality sleep can have on our psyche and general wellbeing.

Favorite quote

Routinely sleeping less than six or seven hours a night demolishes your immune system.

- Matthew Walker

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