The clinical and clinical-psychological analysis of 52 cases of disomnias during non-psychotic depressions in anxious persons with anxiety of various grades of intensity has demonstrated a positive clinical correlation between the depth of the affective state and the severity of sleep disorders. The changes of the sleep-wakefulness rhythm in anxious persons with depression have some specific peculiarities of clinic manifestation and evolution. The treatment of sleep disorders in depression must be complex, durable and in the majority of cases requiring the association of psychotherapy using antidepressant, anxiolyties, hypnotics and vegeto-stabilizers.