Although self-reported long sleep is associated with increased morbidity and mortality, little is known about the objective sleep patterns and daytime functioning of long sleepers, particularly those aged >=50 years. Our primary aim was to compare the objective and subjective sleep patterns of a sample (n = 35) of middle-to older-aged adults who reported sleeping >=8.5 h per night. A secondary aim was to characterize the mood and functioning of the sample. Over a 2-week period, sleep was recorded via actigraphy and a daily diary Sleepiness was assessed daily At the conclusion of the 2-week period, daytime sleepiness, mood, and quality of life were assessed. Measures of sleep and functioning were compared with available representative data. In the sample, actigraphic total sleep time (TST; 7.35±0.97 h) was approximately 60 min greater than age-related representative values but substantially less than diary-assessed TST (8.59 ± 0.74 h) and survey-assessed TST (8.92 ± 0.78 h). Survey and diary-based subjective TST assessments agreed more closely with actigraphic time in bed (TIB; 9.11 ± 0.72 h) than TST, and correlations between subjective TST and actigraphic TIB were similar to those between subjective and actigraphic TST. Measures of mood, sleepiness, and daytime functioning were similar to population-representative values. These results suggest that, among middle-to older-aged adults, self-reported long sleep is primarily indicative of long TIB, but it also represents long objective sleep duration, particularly in comparison to age-matched data. Findings of little functional impairment corroborated previous descriptions of older long sleepers.

中文翻译：

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老年人自我报告的长睡眠时间与客观卧床时间密切相关

尽管自我报告的长睡眠与发病率和死亡率增加有关，但对长睡眠者的客观睡眠模式和白天功能知之甚少，尤其是那些年龄大于 50 岁的人。我们的主要目的是比较报告每晚睡眠 >=8.5 小时的中老年人样本（n = 35）的客观和主观睡眠模式。第二个目的是表征样本的情绪和功能。在 2 周的时间里，通过活动记录仪记录睡眠并每天写日记。 每天评估嗜睡 在 2 周结束时，评估白天的嗜睡、情绪和生活质量。将睡眠和功能测量与可用的代表性数据进行比较。在样本中，活动记录总睡眠时间 (TST; 7.35±0. 97 小时）比年龄相关的代表性值大约 60 分钟，但大大低于日记评估的 TST（8.59 ± 0.74 小时）和调查评估的 TST（8.92 ± 0.78 小时）。与 TST 相比，调查和基于日记的主观 TST 评估与活动记录时间 (TIB; 9.11 ± 0.72 h) 更接近，并且主观 TST 和活动记录 TIB 之间的相关性与主观和活动记录 TST 之间的相关性相似。情绪、困倦和日间功能的测量与人群代表性值相似。这些结果表明，在中老年人中，自我报告的长睡眠主要表明 TIB 长，但它也代表长客观睡眠持续时间，特别是与年龄匹配数据相比。