Disturbed sleep is prevalent in older adulthood and particularly among women. Greater psychological well-being (PWB) is associated with better sleep, but intraindividual variability in PWB has not been examined.

中文翻译：

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心理健康的平均水平和变异性以及与中年和老年妇女睡眠的关联。

睡眠障碍在老年人中普遍存在，尤其是在女性中。更好的心理健康 (PWB) 与更好的睡眠相关，但尚未检查 PWB 的个体差异。