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Daily social media use duration does not impact sleep outcomes in university students, but specific platforms like TikTok and Snapchat may influence bedtime and sleep onset latency.

In a 14-day longitudinal study of 62 university students, objective measures of social media use and sleep (via accelerometers and smartphone data) found no within- or between-participant effects of total daily social media duration on sleep duration, onset latency, efficiency, or bedtime. However, TikTok use was associated with later bedtime (positive between-participants effect), and Snapchat use was associated with shorter sleep onset latency (negative between-participants effect).

Last updated: Jul 23, 2026•0 RCTs•📖 Read as article →

Evidence Score

Evidence Score34/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Beyond self-report: The relationship between daily social media use and sleep in university students.

observational

Breare H, McAlpine T, Charlesworth J, Clarke P, Mullan BA · British journal of health psychology (2026)

Participants: N/A
Duration: 14 days
Intervention: Daily social media use (total duration and platform-specific use of TikTok, Snapchat, etc.)
Outcome: Sleep duration, sleep onset latency, sleep efficiency, bedtime (measured via accelerometers)
Effect Size: N/A (specific effect sizes not reported in abstract)
Population: University students (Mage = 22.11 years, SD = 5.82; N = 62)

Result:

PubMed: 42439038DOI: 10.1111/bjhp.70093

Mechanism Graph

Social media use may displace sleep time or increase arousal
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Platform-specific features (e.g., endless scrolling, notifications) may differentially affect sleep
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TikTok's algorithm may promote prolonged engagement, delaying bedtime
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Snapchat's interactive nature may reduce sleep onset latency via social pressure or anticipation

Limitations

  • ⚠Small sample size (N = 62) limits generalizability
  • ⚠Short 14-day observation period may not capture long-term effects

Frequently Asked Questions

Does total daily social media use affect sleep in university students?▼

No, the study found no significant between- or within-participant effects of total daily social media duration on sleep duration, onset latency, efficiency, or bedtime.

Which social media platforms were linked to sleep changes?▼

TikTok was associated with later bedtime, and Snapchat was associated with shorter sleep onset latency.

How was social media use measured in this study?▼

Total daily social media use was derived from smartphone data, providing objective behavioral measures rather than self-report.

What sleep outcomes were measured?▼

Sleep duration, sleep onset latency, sleep efficiency, and bedtime were measured using accelerometers.

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References

  1. 1.Breare H, McAlpine T, Charlesworth J, Clarke P, Mullan BA. "Beyond self-report: The relationship between daily social media use and sleep in university students.." British journal of health psychology, 2026. PMID: 42439038 DOI: 10.1111/bjhp.70093
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.