ArticleSleep2020
Cognitive effects of split and continuous sleep schedules in adolescents differ according to total sleep opportunity.
Article in Sleep, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04044885 (Investigating the Preferred Nap Schedule for Adolescents With Adequate Sleep), which is not on this map. Cited by 17 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Investigating the Preferred Nap Schedule for Adolescents With Adequate Sleep
Who cites it
17 citing papers in PubMed, 31 citations in OpenAlex.
- Trial
- Trial
- A sleep schedule incorporating naps benefits the transformation of hierarchical knowledge.Sleep · 2022Trial
- Trial
- Socially motivated bedtime procrastination impairs sleep and wellbeing in residential college students.Sleep · 2026Article
- Neurobehavioral functions and sleep architecture during polyphasic and monophasic short sleep schedules.Sleep · 2026Article
- Primary care versus sleep specialist pathways for obstructive sleep apnea with home testing: access, adherence, and treatment personalization.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026Article
- Sleep patterns among middle school students: a three-year longitudinal study in the context of China's "Double Reduction" policy.Frontiers in public health · 2025Article
- Factors associated with late bedtimes, early wake-up times, and short sleep in adolescents on school nights.Sleep advances : a journal of the Sleep Research Society · 2025Article
- Daily relations between nap occurrence, duration, and timing and nocturnal sleep patterns in college students.Sleep health · 2022Article
- Article
- Article
- Actigraphy-Based Sleep Detection: Validation with Polysomnography and Comparison of Performance for Nighttime and Daytime Sleep During Simulated Shift Work.Nature and science of sleep · 2022Article
- Splitting sleep between the night and a daytime nap reduces homeostatic sleep pressure and enhances long-term memory.Scientific reports · 2021Article
- Sleep-Scheduling Strategies in Hospital Shiftworkers.Nature and science of sleep · 2021Article
- Multi-Night Validation of a Sleep Tracking Ring in Adolescents Compared with a Research Actigraph and Polysomnography.Nature and science of sleep · 2021Article
- Comparison Between High School Youth and College Freshmen Toward Their Psychological Disorders Under the Influence of Sleep Hygiene During COVID-19 Pandemic.Journal of primary care & community healthArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
STUDY
objectivesWe compared the basic cognitive functions of adolescents undergoing split (nocturnal sleep + daytime nap) and continuous nocturnal sleep schedules when total sleep opportunity was either below or within the recommended range (i.e. 6.5 or 8 h).
methodsAdolescent participants (age: 15-19 year) in the 8-h split (n = 24) and continuous (n = 29) sleep groups were compared with 6.5-h split and continuous sleep groups from a previous study (n = 58). These protocols involved two baseline nights (9-h time-in-bed [TIB]), 5 nights of sleep manipulation, 2 recovery nights (9-h TIB), followed by a second cycle of sleep manipulation (3 nights) and recovery (2 nights). Cognitive performance, subjective sleepiness, and mood were evaluated daily; sleep was assessed using polysomnography.
resultsSplitting 6.5 h of sleep with a mid-afternoon nap offered a boost to cognitive function compared to continuous nocturnal sleep. However, when total TIB across 24 h increased to 8 h, the split and continuous sleep groups performed comparably in tests evaluating vigilance, working memory, executive function, processing speed, subjective sleepiness, and mood.
conclusionsIn adolescents, the effects of split sleep on basic cognitive functions vary by the amount of total sleep obtained. As long as the total sleep opportunity across 24 h is within the recommended range, students may fulfill sleep requirements by adopting a split sleep schedule consisting of a shorter period of nocturnal sleep combined with a mid-afternoon nap, without significant impact on basic cognitive functions. CLINICAL
trial registrationNCT04044885.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.