Sleep disorders are one of the most important factors in the quality of life assessment in elderly people. The dissatisfaction with sleep is noted at 25 % of men and 50 % of women of advanced age. In elderly insomnia often accompanied by the development of cognitive impairment. More than 25 % of patients regularly or often use sleeping medicines. In this article the authors reviewed the main causes of insomnia at advanced age, the treatment of insomnia in this age group.