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Area of Science:

  • Behavioral Science
  • Sleep Medicine
  • Educational Psychology

Background:

  • Undergraduate students often experience sleep disturbances.
  • Internalizing symptoms like anxiety and depression are prevalent in this demographic.
  • The relationship between objective sleep, mental health, and academic success requires further investigation.

Purpose of the Study:

  • To investigate the correlations between objectively measured sleep parameters and academic performance in undergraduate students.
  • To examine the association between objective sleep metrics, internalizing symptoms (depression and anxiety), and academic performance.
  • To compare objective sleep findings with subjective sleep quality reports.

Main Methods:

  • Utilized actigraphy via Fitbit bands for three weeks to collect objective sleep data (total sleep time, circadian midpoint, sleep efficiency, and variability) from 255 undergraduate students.
  • Administered questionnaires for subjective sleep quality, depression, and anxiety symptoms.
  • Obtained academic performance data (GPA) from university records.

Main Results:

  • Actigraphy-derived sleep metrics showed near-zero correlations with academic performance and internalizing symptoms.
  • Significant correlations were found between subjective sleep quality and internalizing symptoms.
  • Objective sleep patterns, including duration, efficiency, and variability, did not predict academic performance or mental health outcomes.

Conclusions:

  • Objective sleep measures from wearable technology do not appear to be directly associated with academic performance or internalizing symptoms in this undergraduate sample.
  • Subjective perceptions of sleep quality are more strongly related to mental health than objective sleep measures.
  • Findings challenge the hypothesis that poor objective sleep directly impacts academic success and mental well-being in college students.