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August 30, 2026Personality and Mental HealthOpen Access

Individual Differences in Sleep Quality: Exploring the Impact of Temperament on Sleep Through Anxiety and Depression

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Authors

SLStefano LasaponaraASAngelica ScuderiEPElisa Pellegrini

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Overview

Cross-sectional study reveals temperamental traits predict sleep quality in healthy adults, indicating affective distress acts as a primary mediator.

Key Points

  • To investigate whether functional ensemble of temperament (FET) traits predict individual differences in sleep measures and determine whether anxiety and depression mediate these effects.
  • Conducted a cross-sectional assessment of 394 healthy adult participants.
  • Administered the Structure of Temperament Questionnaire (STQ-77), validated sleep inventories (assessing sleep quality, insomnia severity, daytime sleepiness, and presleep arousal), and measures of anxiety and depression.
  • Neuroticism and impulsivity were significantly linked to poorer sleep quality, worse insomnia severity, and elevated presleep cognitive arousal, with anxiety and depression acting as primary mediators.
  • Higher social tempo correlated with improved sleep outcomes and decreased daytime sleepiness.
  • Additional temperamental traits—including empathy, probabilistic thinking, plasticity, and physical endurance—showed associations with distinct sleep profiles.

Cite This Study

Lasaponara et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0e06c1a8fb52e79d6dahttps://doi.org/10.1002/pmh.70100
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