Insomnia symptoms must be differentiated from insomnia disorder. The correct aiagnosis or insomnia aisoraer is important, as insomnia may also be a symptom of many other diseases. Cognitive behavioral methods are recommended as first-line treatment options. Treatment of acute insomnia with hypnotics should not exceed two weeks. In elderly persons adverse effects of hypnotics may exceed their beneficial effects in long-term use. Antidepressive medications acting on the histamine-1 system may be used in very small doses. The new guideline includes e.g. insomnia in pregnant and menopausal women and in cancer patients, and driving issues.