Matt Walker of the Berkeley Sleep Lab published a book titled “Why We Sleep,” which dives deeply into the nature of sleeping and how important it is to us. A decade ago, we knew very little about sleep; however, today, we are beginning to understand much more about the intricacies of our sleep. Ironically, people tend to be more productive when they spend less time working and more time sleeping because sleep is essential for focus and efficiency, both of which are vital in the business world.