Never heard of this book, so I looked it up. https://en.wikipedia.org/wiki/Why_We_Sleep https://en.wikipedia.org/wiki/Why_We_Sleep From the "Crticial receptio

Never heard of this book, so I looked it up. https://en.wikipedia.org/wiki/Why_We_Sleep https://en.wikipedia.org/wiki/Why_We_Sleep From the "Crticial reception" section: Criticism surrounding the book involved concern about statistical errors in the book and the alarmism it generated in some readers.[27] A review from Alexey Guzey, an independent researcher, criticized the book in an essay entitled Matthew Walker's "Why We Sleep" Is Riddled with Scientific and Factual Errors.[28] The criticism was discussed on the BBC series More or Less.[29] Guzey's criticism was also discussed by Andrew Gelman, a statistician at Columbia University.[30] In a later post on Columbia's statistics blog, Gelman indicated that Walker's purported removal of a bar from a graph could be a "smoking gun," commenting that it entered "research misconduct" territory.[31] Walker posted his responses to these and other criticisms in 2019 on his own blog. --- Additional critiques are listed in https://en.wikipedia.org/wiki/Matthew_Walker_(scientist)#Why_We_Sleep https://en.wikipedia.org/wiki/Matthew_Walker_(scientist)#Why... Not being a domain expert, I'd certainly want to see a handful of peer reviews for a book of this sort before subscribing to its conclusions. The fact that it's a best-seller and well-received by the mainstream press is largely irrelevant.