Research

Adherence

Daytime napping, particularly long-duration naps (>= 1 hour), is associated with an increased risk of all-cause mortality, type 2 diabetes, and chronic respiratory disease, likely serving as a marker for underlying health issues or sleep deprivation compensation.

If you find yourself needing long daytime naps (over 1 hour), view it as a signal to prioritize your nighttime sleep. Long naps are associated with higher risks of diabetes and mortality, especially in older adults. Focus on getting 7-8 hours of quality nighttime sleep rather than relying on long daytime naps to compensate.

ModerateQualifiesMEDIUM confidence
daytime napping was significantly associated with an increased risk of dying... For naps of less than 1 h, the risk was increased by an average 14%, whereas for naps longer than 1 h, the risk increased further to an average 32%.
Francesco P. Cappuccio et al. · Current Cardiology Reports · 2017

Why this rating

Evidence is mixed across populations (Mediterranean vs. US/Israel), with some studies showing benefit and others showing harm, suggesting confounding by health status.

Source

Sleep and Cardio-Metabolic Disease

Francesco P. Cappuccio et al. · Current Cardiology Reports · 2017

DOI 10.1007/s11886-017-0916-0

narrative_reviewCited 315×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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