A very good book about sleep. I have learned some shocking facts (basically, not getting enough sleeps makes you stupid, sick and die earlier) and some encouraging facts. I am always a person seeking the short-term motivation in things, so I am taking from this book that I want to take better care of my sleep -- not for some vague advantage in the distant future, but for the fact that I am more physically fit and mentally capable when I've had enough sleep. I now know about REM vs NREM sleep, a huge amount of studies that Walker has cited and some practical tips on how to improve sleeping habits. Good night.
(Read as part of our company's book club.)