Matthew Walker, author of the new book Why We Sleep, is on a mission. Elucidating the many benefits of sleep, he’s out to persuade us that the key to health, attainment, and longevity lies in 8 hours of shut-eye every night.
Use of the familiar 8-hour yardstick as a measure of sleep need may give insomnia sufferers pause. We’d be happy to sleep 8 hours a night . . . if only we could.
Don’t let Walker’s prescriptiveness stand in the way of reading his book. Its appeal rests on the author’s account of discoveries relating to the wonderful things sleep does for us—which should be of interest to us all.