Award-winning journalist and writer Kenneth Miller delves into our long and mysterious relationship with sleep and explores the scientists who embarked on pioneering sleep research. In his book Mapping the Darkness; The Visionary Scientists Who Unlocked The Mysteries of Sleep Miller posits that “for a long time, sleep was really [just] a sideline for scientists,” and sleep researchers struggled to be taken seriously in a field, which for most of the 20th century, had viewed sleep as a wasteful habit or something to be overcome.