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Background
Social media use has been linked to poor sleep outcomes among university students in the cyber age, but the association between the negative consequences of social media use and sleep problems is not yet well understood. The present study investigated the relationships among social media usage, social media fatigue (SMF), fear of missing out (FoMO), social media addiction (SMA) and sleep quality in university students.
Method
An online survey was administered to 2744 respondents that included the Pittsburgh Sleep Quality Index (PSQI); questionnaires evaluating FoMO, SMF, and SMA; and questions regarding sleep duration, social media use, health status, and demographic information.
Result
A total of 19.9% of respondents suffered from sleep disturbance. A total of 15.6% of participants had sleep durations less than 5 h, and 21.6% of subjects had sleep durations longer than 9 h. Sleep quality was positively associated with SMF (OR = 1.387, 95% CI: 1.103~1.743), and SMA (OR = 1.415, 95% CI: 1.118~1.791). The relationship between FoMO and sleep disturbance was not significant. Compared to a sleep duration > 9 h, SMF increased the risk of shorter sleep durations [5–6 h sleep (OR = 2.226, 95% CI: 1.132~4.375), 6–7 h sleep (OR = 1.458, 95% CI: 1.061~2.002), and 7–8 h sleep (OR = 1.296, 95% CI: 1.007~1.670)]. FoMO and SMA did not significantly affect sleep duration. In addition, SMA (OR = 3.775, 95% CI: 3.141~4.537), FoMO (OR = 3.301, 95% CI: 2.753~3.958), and sleep disorders (OR = 1.284, 95% CI: 1.006~1.638) increased SMF.
Conclusion
Upon experiencing negative consequences of social media use, such as SMF and SMA, university students were likely to experience sleep problems. Further research exploring the interventions that improve sleep and alleviate negative consequences of social media use should be conducted.

研究背景
网络时代下，大学生使用社交媒体与不良睡眠结局间的关联已得到证实，但社交媒体使用的负面后果与睡眠问题之间的内在关联尚未得到充分阐释。本研究旨在探讨大学生群体中社交媒体使用、社交媒体疲劳（SMF）、错失恐惧（FoMO）、社交媒体成瘾（SMA）与睡眠质量之间的关联。

研究方法
本研究面向2744名受访者开展线上问卷调查，问卷内容涵盖匹兹堡睡眠质量指数（PSQI）、用于评估FoMO、SMF及SMA的量表，以及关于睡眠时长、社交媒体使用情况、健康状况与人口统计学信息的问题。

研究结果
共有19.9%的受访者存在睡眠障碍；15.6%的参与者每日睡眠时长不足5小时，21.6%的受访者每日睡眠时长超过9小时。睡眠质量与SMF（比值比（Odds Ratio, OR）=1.387，95%置信区间（Confidence Interval, CI）：1.103~1.743）、SMA（OR=1.415，95%CI：1.118~1.791）呈显著正相关。错失恐惧（FoMO）与睡眠障碍间的关联未达到统计学显著性。以每日睡眠时长>9小时的群体为参照，SMF会提升受访者出现更短睡眠时长的风险：睡眠时长5~6小时组（OR=2.226，95%CI：1.132~4.375）、6~7小时组（OR=1.458，95%CI：1.061~2.002）及7~8小时组（OR=1.296，95%CI：1.007~1.670）。FoMO与SMA对睡眠时长无显著影响。此外，SMA（OR=3.775，95%CI：3.141~4.537）、FoMO（OR=3.301，95%CI：2.753~3.958）以及睡眠障碍（OR=1.284，95%CI：1.006~1.638）均会加重SMF。

研究结论
当大学生遭遇社交媒体使用带来的负面后果（如SMF与SMA）时，更易出现睡眠问题。未来应开展相关研究，探索改善睡眠、缓解社交媒体使用负面后果的干预方案。