Nighttime sleep duration
Nighttime sleep duration has been studied in 9 papers since 2018: 9 observational studies in people; 1 in the past year. The newest paper, Nov 1, 2026: “Objective sleep characteristics and longitudinal change in financial and health literacy in older adults”.
9 papers study it9 findingsUpdated
1 new paper in 30 daysSee all 9
“Short and long NSD were associated with high occurrences of falls in the total and female population,”
1 of its findings points the other way.
- 6 independent labs in 2 countries
- 1 finding against
- Funders: National Institute on Aging and 4 more
- Humans9
What did studies of Nighttime sleep duration find?
2Studies of Nighttime sleep duration measured 2 outcomes; the most studied are financial and health literacy trajectories (1 study) and multimorbidity (1).
Financial and health literacy trajectories
no changein humans1
1 study
Financial and health literacy trajectories
no changein humans1
Nighttime sleep duration was not clearly linked with financial and health literacy trajectories in humans (participants without dementia).
“Self‐reported sleep was not associated with literacy trajectories”
Humansparticipants without dementiaself-reportedn = 765
Alzheimer's & dementia : the journal of the Alzheimer's Association
Multimorbidity
no changein humans1
1 study
Multimorbidity
no changein humans1
Nighttime sleep duration was not clearly linked with multimorbidity in humans (Free of multimorbidity at baseline; compared with 6–8 h/night).
“Long sleep duration was not significantly associated with incident multimorbidity.”
HumansFree of multimorbidity at baseline; compared with 6–8 h/nightLong sleep duration4 yearsn = 6,037
Archives of gerontology and geriatrics
What is Nighttime sleep duration linked with?
6Studies link Nighttime sleep duration with 6 measures, most often multimorbidity (2 studies), financial and health literacy (1) and intrinsic capacity decline (1).
Multimorbidity
upin humans2OR 1.38
2 studies
Multimorbidity
upin humans2OR 1.38
Nighttime sleep duration is associated with multimorbidity in humans (Chinese elderly; shorter nighttime sleep duration) (OR 1.38, 95% CI 1.18–1.61).
“participants with shorter (<7 h) and longer (>9 h) sleep duration had a higher prevalence of multimorbidity”
HumansChinese elderly; shorter nighttime sleep duration<7 h per night versus 7–9 h
Sleep medicine
Nighttime sleep duration is associated with multimorbidity in humans (Free of multimorbidity at baseline; compared with 6–8 h/night) (33.3% increased risk (95% CI: 14.8%–54.7%)).
“those with short sleep duration ≤ 5 h/night and 5-6 h/night were associated with 33.3% (95% CI: 14.8%-54.7%) and 24.2% (95% CI: 5.9%-45.6%) increased risk of multimorbidity, respectively.”
HumansFree of multimorbidity at baseline; compared with 6–8 h/night≤ 5 h/night4 yearsn = 6,037
Archives of gerontology and geriatrics
Financial and health literacy
upin humans1
1 study
Financial and health literacy
upin humans1
Nighttime sleep duration is associated with financial and health literacy in humans (baseline literacy in participants without dementia).
“Longer nighttime sleep was associated with higher baseline literacy”
Humansbaseline literacy in participants without dementiaactigraphy-derivedn = 765
Alzheimer's & dementia : the journal of the Alzheimer's Association
Intrinsic capacity decline
upin humans1
1 study
Intrinsic capacity decline
upin humans1
Nighttime sleep duration is linked with a higher risk of intrinsic capacity decline in humans (adjusted for confounding factors).
“nighttime sleep duration was associated with an increased risk of intrinsic capacity decline (P < 0.001), exhibiting a nonlinear J-shaped pattern.”
Humansadjusted for confounding factorsn = 4,994
BMC public health
Falls
upin humans1
1 study
Falls
upin humans1
Nighttime sleep duration is linked with a higher risk of falls in total and female population.
“Short and long NSD were associated with high occurrences of falls in the total and female population,”
Humansin total and female populationn = 18,446
Journal of applied gerontology : the official journal of the Southern Gerontological Society
Diabetes mellitus
mixedin humans1
1 study
Diabetes mellitus
mixedin humans1
Nighttime sleep duration is associated with diabetes mellitus in humans (U-shaped association).
“In addition, we observed a U-shaped association between nighttime sleep duration and incident DM risk.”
Humans4 yearsn = 2,620
International journal of environmental research and public health
Mortality
upin humans1HR 3.89
1 study
Mortality
upin humans1HR 3.89
Nighttime sleep duration is associated with mortality in humans (Adjusted for age and sex) (HR 3.89, 95% CI 1.77–8.59).
“nightime sleep duration ≥10 h (HR 3.89, 95% CI 1.77-8.59, p=0.001)”
HumansAdjusted for age and sex≥10 h nighttime sleep5 yearsn = 283
Kardiologiia