Why We Sleep: Unlocking the Power of Sleep & Dreams

A New York Times bestseller and international sensation, this “stimulating and important book” (Financial Times) from the director of UC Berkeley’s Center for Human Sleep Science is a fascinating dive into the purpose and power of slumber. As the Guardian said, Walker explains “how a good night’s shut-eye can make us cleverer, more attractive, slimmer, happier, healthier, and ward off cancer.”