This review focuses on ageing and sleep. A key focus in aging is to improve senescence by extending good health, optimal cognitive function, and medical and social assistance into later life. Given that one third of the human lifespan is spent sleeping, the importance of maintaining deep, stable, and consistent sleep is self-evident for the good life quality expected and optimal daytime functioning, which the aging process always curtails. For this reason, employees in the health system should know and focus on the expected changes in sleep patterns and disturbances from young adults to old age, including possible disorders and treatments.