Sleep Initiation and Maintenance Disorders |
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| Chronic Insomnia; DIMS (Disorders of Initiating and Maintaining Sleep); Early Awakening; Insomnia Disorder; Nonorganic Insomnia; Primary Insomnia; Psychophysiological Insomnia; Rebound Insomnia; Secondary Insomnia; Sleep Initiation Dysfunction | |
| Disorders characterized by impairment of the ability to initiate or maintain sleep. This may occur as a primary disorder or in association with another medical or psychiatric condition. | |