Habit
Brief strategic naps can improve alertness and performance.[1371,1435,1563, etc.]
Superscript reference numbers link to the Sources bibliography.
Composite Rating
Blends evidence depth, community direction, safety friction, and completeness.
Evidence Intensity
100/100
High depth from human/RCT/meta counts
Community Direction
0
Mixed / Neutral • confidence Minimal
Safety Friction
52/100
Moderate signal from adverse/interaction markers
Data Completeness
100%
Studies 24 • mentions 0 • links 35
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Classification: add.[1127,1275,1371, etc.]
Best fit: Users with midday alertness dip and insufficient night sleep reserve..[1127,1275,1371, etc.]
Goal alignment: Energy, Cognitive, Mood, Recovery.[1127,1275,1371, etc.]
Classification
Add
Evidence Tier
HIGH
Best Fit
Users with midday alertness dip and insufficient night sleep reserve.
Primary Focus
Energy, Cognitive
Clinical Depth
Humans: 377 • RCTs: 12 • Meta: 8
Cohort / Real-World
Cohort signals: 106
Safety Markers
Adverse signals: 5 • Interactions: 0
Freshness, trend, and study timeline for this item
Status
Trend
→ Stable evidence base
Depth
377 total studies · 4 recent
Timeline
Total indexed
377
Human studies
377
Sleep signals
321
Cohort signals
106
Neuropsych signals
90
Cardiometabolic signals
57
Weighted direction score: 0 (Mixed / Neutral)
High when replicated human meta-analysis/trial/cohort depth is present for the habit or exposure.
Total indexed
377
Human studies
377
Sleep signals
321
Cohort signals
106
Neuropsych signals
90
Cardiometabolic signals
57
Randomized trials
12
Meta-analyses
8
Safety adverse signals
5
Dependency signals
2
In vitro / tissue
1
Distribution of evidence by study design strength
Evidence Strength: High
PMID 39153335 • 2024 Dec
To nap or not? Evidence from a meta-analysis of cohort studies of habitual daytime napping and health outcomes.
Sleep medicine reviews
Open PubMedPMID 36109701 • 2022 Sep 15
Napping and cognitive decline: a systematic review and meta-analysis of observational studies.
BMC geriatrics
Open PubMedPMID 37495671 • 2023 Jul 26
The relationship between daytime napping and obesity: a systematic review and meta-analysis.
Scientific reports
Open PubMedBenefit reports: 0
Adverse reports: 0
No-effect reports: 0
Mixed reports: 0
Unclear reports: 0
Signal confidence: 0.00
Benefits
Adverse
No Effect
Community confidence 0.00 with mentions: benefit 0, adverse 0, no-effect 0.
aggregate • unclear
No directional first-hand mentions captured in the current community corpus; source links are retained for traceability.
Open mentionEvidence Sources
PUBMED • Human lifestyle/habit literature
Counts from structured habit/exposure PubMed query set.
Outcome: Humans 44, RCT 2, meta 2, cohort 11, sleep signals 40, cardiometabolic signals 8.[1371,1435,1563, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 35028729 from European journal of pediatrics.
Outcome: See linked PubMed abstract for methods and outcomes.[, etc.]
No directional mention volume was resolved; fallback profile metadata is shown in other sections.
Animal-only studies
0
Composite of study volume, RCTs, and meta-analyses
PMID 39496017 • 2024 Nov 1
Day napping and metabolic-associated fatty liver disease: A systematic review and meta-analysis of observational studies.
Medicine
Open PubMedPMID 30660750 • 2019 Aug
A review of developmental consequences of poor sleep in childhood.
Sleep medicine
Open PubMedPMID 32858276 • 2020 Oct
Association of napping and all-cause mortality and incident cardiovascular diseases: a dose-response meta analysis of cohort studies.
Sleep medicine
Open PubMedPMID 35028729 • 2022 Apr
The role of daytime napping on salivary cortisol in children aged 0-5 years: a systematic review and meta-analysis.
European journal of pediatrics
Open PubMedPMID 39844478 • 2025 Jan
Association of Sleep Duration and Daytime Napping With Risk of Hyperuricemia: A Systematic Review and Meta-Analysis.
International journal of rheumatic diseases
Open PubMedPMID 26016658 • 2015
Afternoon nap and bright light exposure improve cognitive flexibility post lunch.
PloS one
Open PubMedPMID 31919049 • 2020 Feb
Cognition After Early Tonsillectomy for Mild OSA.
Pediatrics
Open PubMedPMID 35978435 • 2022 Aug 17
SHIFTPLAN: a randomized controlled trial investigating the effects of a multimodal shift-work intervention on drivers' fatigue, sleep, health, and performance parameters.
Trials
Open PubMedPMID 27294991 • 2016 Jul-Aug
Napping and Nighttime Sleep: Findings From an Occupation-Based Intervention.
The American journal of occupational therapy : official publication of the American Occupational Therapy Association
Open PubMedPMID 18662202 • 2008 Sep
Self-reported napping and duration and quality of sleep in the lifestyle interventions and independence for elders pilot study.
Journal of the American Geriatrics Society
Open PubMedPMID 31171491 • 2019 Oct
Objective sleep and physical activity using 24-hour ankle-worn accelerometry among toddlers from low-income families.
Sleep health
Open PubMedPMID 35838778 • 2022 Sep
The beneficial effect of medical clowns on performance of EEG in young children: a randomized controlled study.
European journal of pediatrics
Open PubMedPMID 16035127 • 2005 Aug
Effect of timed bright light treatment for rest-activity disruption in institutionalized patients with Alzheimer's disease.
International journal of geriatric psychiatry
Open PubMedPMID 26237777 • 2016 Jan 1
A Daytime Nap Facilitates Generalization of Word Meanings in Young Toddlers.
Sleep
Open PubMedPMID 16050432 • 2005 Jun
Effect of morning bright light treatment for rest-activity disruption in institutionalized patients with severe Alzheimer's disease.
International psychogeriatrics
Open PubMedPMID 28364507 • 2017 Feb 1
Neurobehavioral Impact of Successive Cycles of Sleep Restriction With and Without Naps in Adolescents.
Sleep
Open PubMedPMID 24682206 • 2014 Apr
Insights into behavioral vulnerability to differential sleep pressure and circadian phase from a functional ADA polymorphism.
Journal of biological rhythms
Open PubMedPMID 38761649 • 2024 Jun
Sleep hygiene - What do we mean? A bibliographic review.
Sleep medicine reviews
Open PubMedPMID 26762182 • 2016 Apr
The two-process model of sleep regulation: a reappraisal.
Journal of sleep research
Open PubMedPMID 30570081 • 2018 Dec 13
Physical frailty and gait speed in community elderly: a systematic review.
Revista da Escola de Enfermagem da U S P
Open PubMedPMID 34459862 • 2021 Oct 1
Association of Short and Long Sleep Duration With Amyloid-β Burden and Cognition in Aging.
JAMA neurology
Open PubMedCommunity Sources
PUBMED • 2020 • Human evidence curation set
PMID 32858276 from Sleep medicine.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 35838778 from European journal of pediatrics.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2024 • Human evidence curation set
PMID 39153335 from Sleep medicine reviews.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 36109701 from BMC geriatrics.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2023 • Human evidence curation set
PMID 37495671 from Scientific reports.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2024 • Human evidence curation set
PMID 39496017 from Medicine.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2019 • Human evidence curation set
PMID 30660750 from Sleep medicine.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2025 • Human evidence curation set
PMID 39844478 from International journal of rheumatic diseases.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2015 • Human evidence curation set
PMID 26016658 from PloS one.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2020 • Human evidence curation set
PMID 31919049 from Pediatrics.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 35978435 from Trials.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2016 • Human evidence curation set
PMID 27294991 from The American journal of occupational therapy : official publication of the American Occupational Therapy Association.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2008 • Human evidence curation set
PMID 18662202 from Journal of the American Geriatrics Society.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2019 • Human evidence curation set
PMID 31171491 from Sleep health.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2005 • Human evidence curation set
PMID 16035127 from International journal of geriatric psychiatry.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2016 • Human evidence curation set
PMID 26237777 from Sleep.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2005 • Human evidence curation set
PMID 16050432 from International psychogeriatrics.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2017 • Human evidence curation set
PMID 28364507 from Sleep.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2014 • Human evidence curation set
PMID 24682206 from Journal of biological rhythms.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2024 • Human evidence curation set
PMID 38761649 from Sleep medicine reviews.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2016 • Human evidence curation set
PMID 26762182 from Journal of sleep research.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2018 • Human evidence curation set
PMID 30570081 from Revista da Escola de Enfermagem da U S P.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open sourcePUBMED • 2021 • Human evidence curation set
PMID 34459862 from JAMA neurology.
Outcome: See linked PubMed abstract for methods and outcomes.[1371,1435,1563, etc.]
Open source