Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Sleep: early-phase trial registry
73 of 152 indexed Sleep trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #74 of 28,707 conditions by registered trial count.
152 US clinical trials · 73 currently recruiting · #74 of 28,707 conditions by registered trial count
Sleep: 152 US clinical trials tracked, 73 recruiting.
Sleep is the subject of 152 registered US clinical trials on ClinicalTrials.gov, 73 of them currently open to new participants. 7 are in Phase 3-4 (later-stage) and 15 in Phase 1-2 (earlier-stage). The most active sponsor is University of Pittsburgh, running 10 of these trials.
Enrollment posture brief
Registry condition sleep
OPEN 73 | RECR 48% | LATE 7 | EARLY 15 | RANK #74 | SPON 10
Volume-matched condition peers
Nearest open-share peer: Alpha-1 Antitrypsin Deficiency (48% recruiting · 25 trials)
Sleep lists 73 open slots (48% of 152 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Sleep on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Sleep is recruiting above its size-band peers.
73 of 152 indexed trials (48%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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Sponsorship of Sleep trials is spread across many organizations.
University of Pittsburgh accounts for 10 of 152 trials (6.6%). 96 distinct sponsors appear on at least one study for this condition label.
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Typical Sleep enrolment sits around 80 participants.
Median target enrolment is 80 among the 152 trials that report a genuine target (sentinel values excluded). 84 of those (55.3%) plan for fewer than 100 participants.
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Sleep research is mostly interventional.
134 interventional and 18 observational studies make up this index (88.2% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
152 total, page 1 of 4
Apple Health Study
Apple
NCT06958523
Research Framework Exploring Sleep Health
Scripps Translational Science Institute
NCT05197738
The Effects of Sleep on Human Microbiota: Implications for Health and Disease
Mayo Clinic
NCT02573753
Comparing Two School-Based Sleep Health Interventions To Promote Sleep Quality in Youth
Children's Hospital Los Angeles
NCT07213908
Studying Childhood-onset Behavioral, Psychiatric, and Developmental Disorders
National Institute of Mental Health (NIMH)
NCT01778504
Technology Exposure and Child Health: Wellness Impact and Social Effects: an Observational Product Registry Study
Aura
NCT06664944
A Dyadic Sleep Health Approach for Persons With Alzheimer's Disease and Caregivers
University of California, Los Angeles
NCT05452031
Sleep-dependent Learning in Aging
University of Massachusetts, Amherst
NCT03840083
Sleep Behaviors in Pregnancy
University of Michigan
NCT04205370
Development of the Couplet Care Bassinet
Johns Hopkins University
NCT06533449
Assessing Improvements in Mood and Sleep Trial
University of Pittsburgh
NCT06639477
Cannabidiol and Older Adult Cannabis Users
University of Colorado, Boulder
NCT06290063
CBT-I vs. MBTI for Traumatic Brain Injury (TBI)-Related Insomnia and Post-Traumatic Stress Symptoms
Johns Hopkins University
NCT05663034
Black Impact: The Mechanisms Underlying Psychosocial Stress Reduction in a Cardiovascular Health Intervention
Ohio State University
NCT06055036
Sleep and Morning Wellbeing Study
Athletic Greens International
NCT07311434
The Sweet Dreams Study - Accuracy of Sleep Trackers in Children
Arkansas Children's Hospital Research Institute
NCT06787378
A Sleep Hygiene Intervention to Improve Sleep Health in Urban, Latino Middle School Children
Rhode Island Hospital
NCT06942455
SCREENS: Sleep, Circadian Rhythms, and Electronics in the EveNing Study
Baylor College of Medicine
NCT06192745
Sleep Trial to Prevent Alzheimer's Disease
Washington University School of Medicine
NCT04629547
Examination of the Dynamic Relationships of Sleep, Physical Activity, and Circadian Rhythmicity With Neurobehavioral Heterogeneity in ADHD
Hugo W. Moser Research Institute at Kennedy Krieger
NCT06810180
Wellness Intervention for Smoking and HIV
University of Arizona
NCT04725617
Do Endotypes Predict Response and Sequelae in OSA Patients
University of California, San Diego
NCT04875364
Combination Therapy for Treatment of Sleep Disturbance in Patients With Advanced Cancer
M.D. Anderson Cancer Center
NCT05474846
Cannabis for Palliative Care in Cancer
University of Colorado, Boulder
NCT06266611
The Goodnight Screen Media Study
Baylor College of Medicine
NCT05820555
Cannabis Effects on Sleep, Circadian Rhythms, and Light Sensitivity in Young Adults
University of Pittsburgh
NCT06743373
Night Owl Sleep Study: The Effect of Sleep on Fecal Microbiota
Danis
NCT07243574
Mechanisms of Cannabidiol in Persons With MS: the Role of Sleep and Pain Phenotype
Tiffany J. Braley, MD, MS
NCT05269628
Shifting Sleep Timing in Teens
Stanford University
NCT05808179
The Effects of a Nutritional Supplement on Sleep Quality
Athletic Greens International
NCT07345260
Effects of PeptiSleep on Sleep Quality in Healthy Adults
Nuritas
NCT07258433
Project REST: Regulation of Eating and Sleep Topography
University of Pittsburgh
NCT04057716
Nighttime Synchrony of Your Nutrition and Circadian Health
University of Utah
NCT07329283
Time-in-bed Restriction in Older Adults With Sleep Difficulties With and Without Risk for Alzheimer's Disease
University of Pittsburgh
NCT05138848
Light Timing Study
Rush University Medical Center
NCT04753190
The Effect of Light Intervention on Recovery in Individuals With Opioid Use Disorder (OUD)
University of Alabama at Birmingham
NCT06832007
Human Learning of New Structured Information Across Time and Sleep
University of Pennsylvania
NCT05910762
COVID-19 Health Adjustments in Nutrition, General Wellness, and Exercise
Indiana University
NCT07128095
The Effects on Sleep Quality of 1:4 Reishi Liquid Extract
Efforia
NCT07294482
Sleep Promotion Program Primary Care
University of Pittsburgh
NCT06240325
Evaluating SleepWhale Drops for Rest & Resilience
Efforia
NCT07298161
The Effect of Sleep Deprivation and Recovery Sleep on Emotional Memory and Affective Reactivity
Beth Israel Deaconess Medical Center
NCT03767426
Chilipad Sleep Optimization Study
Efforia
NCT07281963
MyVitalC: Sleep and Everyday Headache Management
Efforia
NCT07477236
Cognitive Training for Student Sleep and Wellness
Carnegie Mellon University
NCT07350733
My ESSENCE - A Research Study on Mindfulness for African-Americans With Type 2 Diabetes
University of Illinois at Chicago
NCT05208164
The Use of Multiple Sensors to Track Sleep in Nightshift Workers
Henry Ford Health System
NCT06670287
Circadian Rhythms and Homeostatic Sleep Drive and Their Effect on Reward and Cognitive Control Systems in Adolescents
University of Pittsburgh
NCT05336084
Transdiagnostic Sleep and Circadian Intervention + Bright Light in Adolescents With Elevated Depression (TranS-C+BL)
University of Pittsburgh
NCT06963463
The Effect of Sleep Loss on Emotion Regulation
Beth Israel Deaconess Medical Center
NCT05393830
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 7 |
| Phase 2 | 8 |
| Phase 3 | 3 |
| Phase 4 | 4 |
Top Sponsors
Named interventions
Most-linked intervention names on Sleep records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Sleep trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Sleep page
152 registered trials, 73 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 73 Sleep trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- University of Pittsburgh sponsors the most Sleep trials on record, review their full trial history before evaluating a specific study. See University of Pittsburgh's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Sleep condition card totals 152 registered trials; most-linked intervention Placebo; top US site state Pennsylvania. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.