Melatonin and sleep: How the sleep hormone works

19. 01. 2026

Is falling asleep a matter of minutes for you, or a nightly test of patience? Sleep problems are among the most common health complaints today and have a direct impact on performance, immunity, and mental well-being. One of the key factors regulating sleep is the hormone melatonin, says MUDr. Barbora Hradecká, Chief physician of ENT and sleep medicine specialist.