Sleep Quality Recovered Unevenly After Pandemic With Socioeconomic Gaps Persisting

Quality sleep is fundamental to longevity and health optimization, making post-pandemic sleep recovery patterns crucial for understanding population health trajectories. This comprehensive Spanish study reveals important disparities in how different groups recovered from COVID-19's sleep disruptions.

Researchers analyzed 11,794 responses from eight waves of surveys conducted in Catalonia from 2020-2023, using validated sleep assessment tools measuring six key dimensions: satisfaction, alertness, timing, efficiency, duration, and regularity. This repeated cross-sectional design provided robust population-level insights into sleep health trends.

Sleep health began improving by mid-2021 before stabilizing, but recovery varied significantly by dimension and demographic group. Sleep efficiency plateaued earliest by late 2020, while subjective satisfaction remained most volatile throughout the study period. Sleep regularity, disrupted during 2020 lockdowns, recovered relatively quickly. Women consistently scored lower than men across all timepoints, though improvement trajectories were similar.

Most significantly, material deprivation emerged as the strongest predictor of poor sleep health and delayed recovery. This suggests that socioeconomic factors create lasting barriers to sleep optimization that persist beyond acute crisis periods. Older adults and individuals with excess weight showed distinctive improvement patterns, while living alone temporarily impacted sleep during lockdowns but resolved by 2022.

For health optimization, these findings emphasize that sleep interventions must address both behavioral factors and structural determinants like economic stability. The study's limitation to one Spanish region may limit broader generalizability, but the large sample size and comprehensive methodology strengthen confidence in the core findings about socioeconomic sleep disparities.