Mood disorders are found in one-third to one-half of patients with chronic sleep problems. Likewise, most patients with mood disorders experience insomnia, but a minority obtain significantly increased amounts of sleep. Although mood disorders cause significant morbidity and mortality, they often go undiagnosed. Attention to sleep complaints could lead to better identification of mood disorders. Management of sleep problems in patients with mood disorders should focus on treating underlying mood disorders with attention to the nature of the sleep complaint. Patients with depression show characteristic abnormalities in sleep continuity, slow-wave sleep and REM sleep patterns. Differences in sleep patterns cannot reliably distinguish patients with depression from those with other psychiatric disorders, but sleep changes may provide a window on neurobiologieal abnormalities in depression.

中文翻译：

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睡眠和情绪障碍。

在患有慢性睡眠问题的患者中，有三分之一至一半发现了情绪障碍。同样，大多数情绪障碍患者会出现失眠，但少数患者的睡眠量显着增加。尽管情绪障碍会导致明显的发病率和死亡率，但它们往往无法诊断。注意睡眠障碍可以更好地识别情绪障碍。患有情绪障碍的患者的睡眠问题的处理应着重于治疗潜在的情绪障碍，并注意睡眠投诉的性质。抑郁症患者表现出睡眠连续性，慢波睡眠和REM睡眠模式的特征异常。睡眠方式的差异无法可靠地将抑郁症患者与其他精神疾病患者区分开，