# 到底需要睡多久

按 AASM/SRS 共识，成年人 ≥ 7 小时，区间为 7–9 小时。随年龄略减是正常的。



## 要点

- 目标是平均 ≥ 7 小时。

- 看一周，而不是看一晚。

- 随着年龄增长，预期会略少一些。



## 来源

- Recommended amount of sleep for a healthy adult: a joint consensus statement of the American Academy of Sleep Medicine and Sleep Research Society (Watson NF, Badr MS, Belenky G, et al., 2015)

- National Sleep Foundation's sleep time duration recommendations: methodology and results summary (Hirshkowitz M, Whiton K, Albert SM, et al., 2015)

- Trends in self-reported sleep duration among US adults from 1985 to 2012 (Ford ES, Cunningham TJ, Croft JB, 2015)

- Sleep duration and all-cause mortality: a systematic review and meta-analysis of prospective studies (Cappuccio FP, D'Elia L, Strazzullo P, Miller MA, 2010)

- Meta-analysis of quantitative sleep parameters from childhood to old age in healthy individuals (Ohayon MM, Carskadon MA, Guilleminault C, Vitiello MV, 2004)

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这是对已发表研究的科普性总结，不构成医疗建议。筛查得分不是诊断。若得分偏高或身体不适，请咨询医生。

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