ArticleProceedings of the National Academy of Sciences of the United States of America2025
Healthy sleep durations appear to vary across cultures.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed.
- Sleeping without borders: Gaps in contextualizing sleep duration guidelines for adults in low-income countries.Sleep medicine: X · 2026Article
- Evidence on Sleep and Academic Achievement in First-Year University Students: A Scoping Review.Clocks & sleep · 2026Review
- Prospective multidimensional predictors of poor sleep quality in older adults: A cross-national study.Applied psychology. Health and well-being · 2026Article
- Telemonitored sleep quality and daily activity are associated with mental health outcomes among Japanese workers.Scientific reports · 2026Article
- Occupational and psychosocial correlates of sleep disturbance among Chinese expatriate employees in Iraq's Maysan oilfields: a cross-sectional study using regression and network analysis.Frontiers in psychiatry · 2026Article
- Sleep chart of biological aging clocks across organs and omics.medRxiv : the preprint server for health sciences · 2025Article
- Healthy sleep durations appear to vary across cultures.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
Past research finds that sleep duration is reliably linked with health yet sleep durations differ substantially between countries. We investigated whether countries with shorter sleep durations have worse health. Study 1 analyzed national sleep durations from 14 past investigations (
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.