In older people, sleep disturbances are very common. Changes in sleep patterns may be a normal part of ageing, but many other factors in older people can contribute to sleep problems. Sleep disorders decrease quality of life in older people by causing daytime sleepiness, tiredness, and lack of energy. Poor quality of sleep can also lead to confusion, difficulty concentrating, and poor performance in tasks. In this article, we discuss the main features of sleep disorders in older people, the causes, and the general management options.