Relationship between daily stress and sleep

Takeaway

  • There is a bi-directional relationship between stress and sleep duration, such that poorer sleep quality predicted higher next-day stress; between-person effects of sleep and stress were weaker than within-person daily effects.

Why this matters

  • Stress and sleep are heavily intertwined with each other, vary day-to-day, and can have significant impact on physical health.

  • Previous studies about the relationship between sleep and stress observed between-person comparisons, not within-individual comparisons.