If you like taking a siesta or power nap, you don't need to be told of the benefits of sleep. They are many, for both body and mind.
New discoveries are made all the time at the Center for Human Sleep Science at the University of California-Berkeley. Matthew Walker runs the lab and wrote a book about some of the exciting discoveries, Why We Sleep: Unlocking the Power of Sleep and Dreams.
Book and interview are both from 2017, but the knowledge of sleep's salubrious effects is as fresh as the morning dew.