Saved by the SiestaMillions of people struggle every day against a chronic lack of sleep that exhausts them and threatens their health. There is a simple remedy a daytime nap. Saved by the Siesta explains how siestas work and the remarkable role they can play in overcoming the destructive effects on the brain and the body of a shortage of sleep, for a siesta is like a night's sleep in miniature. A daytime nap fulfils all the same functions as a night's sleephormonal,