Do daytime naps improve health and performance?

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1. 1

   The effect of daytime napping on the athletic performance of team ball sports athletes: systematic review and meta-analysis.

   Frontiers in physiology (Zheng et al.)Published Jul 22, 2026Checked Oct 4, 2026

   “Twelve trials encompassing 179 team ball sports athletes met the inclusion criteria. Nap interventions were consistently scheduled in the early afternoon (13:00-15:30), most frequently commencing at 14:00. Following presumed normal nocturnal sleep, napping demonstrated a large positive effect on endurance performance (SMD = 0.96, 95% CI 0.62 to 1.29, p 60 min) yielding the largest improvements in endurance (SMD = 1.38) and power (SMD = 0.84), while moderate naps (31-60 min) similarly conferred substantial benefits. These findings suggest that strategic napping, particularly moderate and long durations, should be considered for integration into training and competition routines for athletes achieving presumed normal nocturnal sleep. However, effects on cognitive and technical performance remain uncertain due to evidence imprecision. Strategic napping protocols should be tailored to specific sport performance demands to optimize physiological recovery and readiness.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD420251268837, identifier CRD420251268837.”

2. 2

   Multiple Health Outcomes of Daytime Napping: A Comprehensive Umbrella Review.

   Public health reviews (Du et al.)Published Feb 3, 2026Checked Oct 4, 2026

   “ObjectivesThis umbrella review aimed to clarify the dose-response relationship between napping duration and multiple health outcomes.MethodsFollowing JBI guidelines, the review included studies from PubMed, Web of Science, the Cochrane Library, and EMBASE. Data on health outcomes, effect sizes, and study characteristics were extracted, and the quality of the studies was assessed using AMSTAR-2 and GRADE. A random effects model and a sensitivity analysis were used to evaluate the associations.ResultsThis umbrella review identified 16 meta-analyses encompassing 244 health-related outcomes. Napping for 60 min correlates with a 30% higher risk of coronary heart disease and a 20% increased risk of diabetes and obesity; short naps (20-30 min) improve athletic performance (SMD = 0.99, 95% CI: 0.67-1.31) and recovery, particularly in sleep-deprived individuals.ConclusionLimiting nap duration to ≤60 min may optimize cognitive and physical benefits while reducing chronic disease risks. For individuals with chronic conditions, it is prudent to avoid prolonged naps (>60 min) and prioritize nighttime sleep quality.”

3. 3

   Rest Unassured: A Systematic Review on the Impacts of Daytime Napping in the Mediterranean on Health Outcomes, Quality of Life, and Lifespan.

   American journal of lifestyle medicine (Ellis et al.)Published Sep 11, 2026Checked Oct 4, 2026

   “Following PRISMA guidelines, electronic searches of Embase, PsycINFO, PubMed, and SCOPUS were conducted. Eligible studies were empirical, peer-reviewed, and only included samples from the Mediterranean region. Findings were inconsistent across all health outcomes. However, there was a trend for short naps (≤30 min/day) to be associated with beneficial cardiovascular outcomes and metabolic health. In contrast, longer naps (>30 min/day) were more often associated with increased risk of cardiometabolic diseases in older adults. Interpretation was limited by methodological heterogeneity, including varied nap definitions, over-reliance on self-reports, and poor evaluation and/or adjustment for sleep disorders or excessive daytime sleepiness. These findings imply that naps should be seen as part of the broader Mediterranean lifestyle and future research should use validated, standardised assessments of napping while simultaneously accounting for sleep disorders, daytime sleepiness, and nocturnal sleep. This will lead to better insights into the role of culturally embedded napping in health.”

4. 4

   Nighttime sleep, midday napping, and mortality in Chinese older adults: A China Health and Retirement Longitudinal Study longitudinal cohort study.

   The Journal of international medical research (Ren et al.)Published Aug 6, 2026Checked Oct 4, 2026

   “The "long sleep + long nap" pattern (>8 h nighttime sleep + ≥60 min nap) was associated with the highest risk of all-cause mortality (hazard ratio = 3.048, p < 0.001). Males with 8-10 h of nighttime sleep had an elevated risk of all-cause mortality (hazard ratio = 3.095, p = 0.001), whereas females with 4-6 h of nighttime sleep had a lower risk of premature death (hazard ratio = 0.522, p = 0.039). Restricted cubic spline analysis confirmed a nonlinear U-shaped association between nighttime sleep duration and all-cause mortality.ConclusionsIn Chinese older adults, prolonged daily napping (≥60 min) was associated with a higher risk of mortality after adjustment for covariates. Sex-specific differences were observed, although the formal interaction test did not reach statistical significance (p = 0.112). Nighttime sleep of 6-8 h and avoiding daily napping ≥60 min may be associated with a lower risk of mortality; however, as this was an observational study, causal inference cannot be established.”

5. 5

   Nap (Wikipedia)

   WikipediaPublished Sep 29, 2026Checked Oct 4, 2026

   “A nap is a short period of sleep, typically taken during daytime hours as an adjunct to the usual nocturnal sleep period. Naps are most often taken as a response to drowsiness during waking hours or as a means to supplement before or after loss of sleep. A nap is a form of biphasic or polyphasic sleep, where the latter terms also include longer periods of sleep in addition to one period. There are multiple different types of naps depending on what the user's desired outcome may be or time constraints they may have, and for years, scientists have been investigating the benefits of napping, including the 30-minute nap as well as sleep durations of 1–2 hours. Performance across a wide range of cognitive processes has been tested, and naps have been shown to have various cognitive, physical, and psychosocial benefits.”