Doctors are increasingly waking up to the idea that getting enough sleep is crucial. In 2022, the American Heart Association advised physicians that asking patients how many hours they sleep is as important as checking their blood pressure, smoking status, diet and exercise habits. And Neuroscientists are realizing that the timing of our sleep may be just as important as the amount. We are beginning to understand how we might work with, rather than against, the rhythms of our bodies.