Customer Review

Reviewed in the United States on March 31, 2021
Dramatically written book will get your attention. But the further into it I got, the more I realized that many of the claims were speculation rather than definitive science. I wish the author had pulled back a bit and given a more dispassionate telling of the science, rather than an overconfident story that we deeply understand sleep.
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4.7 out of 5 stars
4.7 out of 5
14,661 global ratings