Why We Sleep: Unlocking the Power of Sleep and Dreams

This book has some very important facts on one of the most overlooked bodily functions ‘sleep'. Although the title is a bit misleading and some claims didn't have any proper references, the book itself is quite an info dense on how sleep affects us, how important it is to maintain proper sleep etiquette, and how broad the spectrum is on the effects of low-quality/high-quality sleep. His book essentially debunked most of the claims some people make on how sleep is a waste of time/sleep is for the weak. This book has its critics and I found this follow-up article about it which captured the whole fiasco https://statmodeling.stat.columbia.edu/2019/11/18/is-matthew-walkers-why-we-sleep-riddled-with-scientific-and-factual-errors/

3.75 stars/5 stars.
p.s- the last two chapters were unnecessary.