Sleep disorders is a widespread complaint that patients see a doctorat. About 30% of the total population suffers from various forms of sleep disturbances. Sleep disorders are divided into two large groups: 1. Dysomnia – (Dyssomnias) include insomnia (insomnia), hypersomnia – increased drowsiness, etc. 2. Parasomnias – (Parasomnias) include a heterogeneous group of sleep disorders or transition from sleep to awake or vice versa. Insomnia (Insomnia) – a violation of the phase of falling asleep or rapid awakening. Sleep disturbance can be short-term or permanent. According to the DSM-IV classification, the diagnosis of Insomnia (insomnia) is made when the patient suffers from insomnia at least three times a week, which is accompanied by drowsiness during the day. Such sleep disturbance should last at least a month. Insomnia can be secondary, in response to various somatic causes, such as brain disease, pain, asthma attacks (Sleep Apnea), drug reactions, endocrine diseases, metabolic disorders. Insomnia can occur with mental illness and stress. For example, insomnia is a common symptom in anxiety and depression. Secondary insomnia may be associated with regular night shift work. In cases where the organic nature of insomnia or its situational cause is not found, insomnia is primary (Primary). In anxiety states (situational states or neurosis), sleep disturbance consists in the inability to fall asleep. In patients with depressive states, sleep disturbances manifest themselves in early awakening and inability to fall asleep again. Therapy should be consistent with the etiological cause of insomnia. If insomnia accompanies an organic disease that can be treated, then insomnia also goes away with an improvement in the somatic state (without special treatment). Sometimes insomnia requires surgical treatment, for example, with attacks of night suffocation. Hypnotic drugs (from the benzodiazepine group) are used to treat insomnia. It is important to remember that these drugs have the property of inducing tolerance, so after a few weeks their therapeutic effect is noticeably reduced. Related to this is the need for drug changes.