In this book, the world "Fraser Harris" lists many research and thoughts about this natural phenomenon. The writer defines sleep in the state of "natural life" that a healthy person reaches and needs in order to continue his life in a healthy way, indicating that there are basic rules that must be followed to get a deep sleep. The writer also mentions the history of sleep in all ages; Where some believed in the past that the state of sleep involves great supreme meanings. The first chapter begins with a full explanation of the insomnia and its causes, then it moves in the following seasons to talking about dreams and the future of sleep in the modern era; The possibilities of the rules that cities may put in order to create insulating buildings for sounds, guaranteeing calm, and providing proper sleep for their residents, "Sleeping is a miracle of life miracles that are repeated every day."