Sleep and related disorders
Sleep and related disorders is a research topic within Experimental and Cognitive Psychology. Science Explorer counts 47k research works in it since 1950. 22.6% of them reached the world's top 10% most cited for their field and year.
This cluster of papers encompasses a wide range of research on sleep and insomnia, including topics such as the epidemiology of insomnia, the effects of sleep duration on health, cognitive behavioral therapy for insomnia, and the psychometric evaluation of sleep measures. It also covers the impact of sleep on various health outcomes, including cardiovascular disease, diabetes, obesity, and mental health. Additionally, the cluster includes studies on the role of circadian rhythms and sleep quality in overall well-being.
- Insomnia
- Sleep Duration
- Cognitive Behavioral Therapy
- Sleep Quality
- Meta-Analysis
- Epidemiology
- Chronic Insomnia
- Psychometric Evaluation
- Health Consequences
- Circadian Rhythms
- Research works
- 47k fractional, since 1950
- In the world top 10%
- 11k per year above
- Top-10% rate
- 22.6% share of its works in the world top 10%
- Growth, 2013–17 → 2018–22
- +60% the tick is no change
Which countries lead Sleep and related disorders research?
By volume, the United States and China publish the most (3.8k and 2k works in 2022–2025).
By volume, 2022–2025
- 1 United States 3.8k works
- 2 China 2k works
- 3 United Kingdom 545 works
- 4 Australia 543 works
- 5 Japan 485 works
- 6 India 484 works
- 7 Canada 433 works
- 8 Brazil 393 works
- 9 Germany 390 works
- 10 South Korea 388 works
How concentrated that is
The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.
Shares of the rows listed above, not of the whole node.
Which institutions lead Sleep and related disorders research?
By volume in 2022–2025, Harvard University publishes the most Sleep and related disorders research, followed by University of Pittsburgh and Stanford University.
By volume, 2022–2025
- 1 Harvard UniversityUnited States 84 works
- 2 University of PittsburghUnited States 70 works
- 3 Stanford UniversityUnited States 61 works
- 4 University of PennsylvaniaUnited States 51 works
- 5 Pennsylvania State UniversityUnited States 51 works
- 6 Monash UniversityAustralia 50 works
- 7 Universidade Federal de São PauloBrazil 49 works
- 8 University of ArizonaUnited States 48 works
- 9 Brigham and Women's HospitalUnited States 45 works
- 10 University of MichiganUnited States 43 works
Who are the leading researchers in Sleep and related disorders?
The most-cited researchers publishing on Sleep and related disorders include Ronald C. Kessler, Dan J. Stein and Shaun Purcell.
- 1 Ronald C. Kessler United States 9.8k citations
- 2 Dan J. Stein South Africa 7.7k citations
- 3 Shaun Purcell United States 7.2k citations
- 4 Mika Kivimäki United Kingdom 6.7k citations
- 5 Josep María Haro Spain 6.4k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Sleep and related disorders research done?
The largest centres of Sleep and related disorders research in 2022–2025 are Beijing (China), Seoul (South Korea), Shanghai (China) and Tokyo (Japan). Among places with at least 20 works in it, it is an unusually large share of all research in Rockhampton and Provo.
Largest cities, 2022–2025
Where it is the local speciality
- RockhamptonAU · 26.6 works19×
- ProvoUS · 23.7 works7.0×
Location quotient: how much more of its research is in Sleep and related disorders than the world average.
Where is the best place to study Sleep and related disorders?
Among universities, judged by research, Kermanshah University of Medical Sciences, Flinders University and Monash University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.
One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | Kermanshah University of Medical SciencesIran | 67.0 | 35.9% | 9.8× | 12 | +178.2% |
| 2 | Flinders UniversityAustralia | 65.4 | 24.6% | 12.7× | 37 | +69.3% |
| 3 | Monash UniversityAustralia | 63.3 | 25.0% | 4.6× | 50 | +220.1% |
| 4 | Central Queensland UniversityAustralia | 61.2 | 19.2% | 19.4× | 27 | +110.1% |
| 5 | Harvard UniversityUnited States | 58.0 | 24.1% | 5.2× | 84 | +37.2% |
| 6 | National University of SingaporeSingapore | 57.9 | 32.6% | 2.0× | 26 | +243.2% |
| 7 | Duke-NUS Medical SchoolSingapore | 57.2 | 17.9% | 9.2× | 9 | +441.5% |
| 8 | University of PittsburghUnited States | 57.0 | 18.8% | 7.2× | 70 | +59.7% |
| 9 | Anhui Medical UniversityChina | 56.2 | 37.2% | 6.4× | 25 | +57.4% |
| 10 | Taipei Medical UniversityTaiwan | 55.7 | 27.9% | 8.0× | 12 | +96.4% |
Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.
Is Sleep and related disorders research growing?
Output in 2018–2022 was 60% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are Sleep and related disorders.
The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.
Which topics inside it are moving
Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.