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| Dyssomnias Sleep Disorders, Extrinsic | Adjustment Sleep Disorder | Environmental Sleep Disorder | Inadequate Sleep Hygiene | Limit-Setting Sleep Disorder | Nocturnal Eating-Drinking Syndrome | Sleep Disorder, Adjustment | Sleep Disorder, Environmental A broad category of sleep disorders characterized by either hypersomnolence or insomnia. The three major subcategories include intrinsic (i.e., arising from within the body) (SLEEP DISORDERS, INTRINSIC), extrinsic (secondary to environmental conditions or various pathologic conditions), and disturbances of circadian rhythm. (From Thorpy, Sleep Disorders Medicine, 1994, p187) | |
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