Patients with insomnia suffer from problems falling asleep and/or maintaining sleep. This has a negative effect on their daytime wellbeing and performance. Insomnia is primarily diagnosed by a detailed clinical history, supplemented by questionnaires and sleep diaries. Polysomnography may be necessary for the differential diagnosis of organic sleep disorders. Insomnia is a frequent comorbidity of most mental disorders and many physical diseases. It is treated according to guidelines with cognitive behavioural therapy for insomnia (CBT-I). CBT-I is offered in individual or group format as well as online-supported treatment. If behavioural therapy is not effective or not available, pharmacotherapy can be discussed.
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