- A long-term study found that longer naps, more frequent naps and morning naps were all linked to higher mortality in older adults.
- Irregular napping was not linked to higher mortality, suggesting timing and amount may matter more than simple day-to-day variation.
- The study does not show that naps are harmful, but it suggests excessive napping may be a warning sign of underlying illness or disrupted sleep.
Researchers followed 1,338 older adults for up to 19 years.
Participants wore wrist activity monitors, allowing the researchers to measure napping patterns objectively rather than relying on self-report.
That is important because people are often poor judges of their own sleep and nap habits.
The results showed that longer naps, more frequent naps and morning naps were all associated with a higher risk of death.
Each additional hour of daytime napping per day was linked to roughly a 13% higher mortality risk.
Each extra nap per day was linked to around 7% higher risk.
Morning nappers had a 30% higher mortality risk than people who tended to nap in the afternoon.
Notably, irregular napping patterns were not associated with increased mortality.
That makes the picture a bit more specific.
It is not just any nap that seems to matter, but patterns that may reflect poor overnight sleep, circadian disruption or underlying disease.
The key point is that this is correlation, not causation.
The study does not show that napping causes decline.
- Regular napping linked to better health and cognitive benefits
- Sleeping under 7 hours is strongly linked to shorter life expectancy
- Mid-life movement and sleep patterns may hint at lifespan
More likely, excessive or poorly timed napping is acting as a marker of something else going wrong.
That could include neurodegeneration, cardiovascular disease, sleep disorders or general frailty.
So the takeaway is not that older adults should stop napping.
It is that changes in nap length, frequency and timing may be worth paying attention to, especially if they are new.
