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Showing 1–24 of 101 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Sleep Timing Clear all
Not yet recruiting Not applicable Interventional

Circadian Light Exposure Adjustment for Restfulness

NCT07391852
View directory record Official record
Conditions
Sleep Onset Latency
Interventions
Amber Tinted Glasses, Clear Glasses, Smart Lightbulbs
Device
Lead sponsor
University of Arizona
Other
Eligibility
60 Months to 83 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Terminated Not applicable Interventional

Effect of Meal Composition and Timing Modification on Glucose Metabolism, Body Temperature and Sleep

NCT05413928
View directory record Official record
Conditions
PreDiabetes, Type 2 Diabetes, Healthy
Interventions
Time Restrictive Eating- late, Time Restrictive Eating- early, Time Restrictive Eating- early with early caloric intake, Macronutrient-controlled meals
Behavioral · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Phase 2 Interventional

RECOVER-SLEEP: Platform Protocol

NCT06404086
View directory record Official record
Conditions
Long COVID, Long COVID-19, Hypersomnia, Sleep Disturbance
Interventions
Modafinil, Modafinil Placebo, Solriamfetol, Solriamfetol Placebo, Melatonin, Melantonin Placebo, Tailored lighting (TL) Active, Tailored lighting (TL) Placebo
Drug · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
830 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
47
States / cities
Phoenix, Arizona • Tucson, Arizona • Palo Alto, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Light Therapy for Depression in Adolescent Outpatients

NCT05823090
View directory record Official record
Conditions
Depression, Adolescent - Emotional Problem
Interventions
light box (Carex DayLight Classic Model)
Device
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
12 Years to 18 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 24, 2023 · Synced Sep 5, 2026, 6:49 AM EDT
Not yet recruiting Not applicable Interventional

Aerobic Exercise as a Countermeasure for Night Shift Associated Circadian Misalignment

NCT07668622
View directory record Official record
Conditions
Healthy, Circadian Misalignment
Interventions
Exercise
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sleep Timing, Eating and Activity Measurement Study

NCT04992611
View directory record Official record
Conditions
Sleep, Circadian Rhythm Disorders, Dietary Habits
Interventions
Sleep Extension (Early), Sleep Extension (Late)
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
14 Years to 18 Years
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional

Optimizing the Timing of rTMS to Enhance the Administration of Insomnia Treatment

NCT06656533
View directory record Official record
Conditions
Insomnia
Interventions
Repeated Transcranial magnetic stimulation (rTMS)
Other
Lead sponsor
Stanford University
Other
Eligibility
25 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional

Type 1 Diabetes REst for Metabolic Health

NCT06627504
View directory record Official record
Conditions
Type 1 Diabetes (T1D), Sleep Health
Interventions
Sleep Health and Circadian Timing Intervention
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
14 Years to 19 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Circadian Rhythms in Postmenopausal Women

NCT04893226
View directory record Official record
Conditions
Metabolic Syndrome, Postmenopausal Symptoms
Interventions
Time-Restricted Feeding (TRF)
Behavioral
Lead sponsor
Julie Pendergast
Other
Eligibility
45 Years to 65 Years · Female only
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Motor Training in PD

NCT02457832
View directory record Official record
Conditions
Parkinson Disease
Interventions
Adapted Tango Dancing, Behavioral Control (BC) Condition
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years to 70 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2023
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sleep Timing and Energy Balance

NCT01866280
View directory record Official record
Conditions
Sleep, Meals
Interventions
Normal sleep, Normal meals, Late sleep, Late meals
Behavioral
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
20 Years to 45 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 20, 2015 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sleep Timing on Energy Intake and Energy Expenditure

NCT05096585
View directory record Official record
Conditions
Obesity
Interventions
Delayed bedtime sleep restriction, Early wake sleep restriction
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
21 Years to 45 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 9, 2023 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The i Heart Rhythm Project: Healthy Sleep and Behavioral Rhythms for Obesity Prevention

NCT04445740
View directory record Official record
Conditions
Obesity Prevention
Interventions
i♥rhythm project
Behavioral
Lead sponsor
Baylor College of Medicine
Other
Eligibility
5 Years to 60 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 24, 2023 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional

Sleep Quality in High School Students With Asthma - II

NCT03329066
View directory record Official record
Conditions
Asthma, Sleep, Asthma in Children
Interventions
MAST - Managing Asthma & Sleep in Teens, ASMA - Asthma Self-Management for Adol, Information & Referral Control Group
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
13 Years to 17 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
New York, New York • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Mar 3, 2021 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional

Differences in Rest, Emotion, and Arousal Modulation in Youth

NCT07476937
View directory record Official record
Conditions
Autism, Sleep Disturbances in Children, Sleep
Interventions
Power Down bedtime manipulation
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
6 Years to 10 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional

Mechanisms of Depression and Anhedonia in Adolescents: Linking Sleep to Reward- and Stress-Related Brain Function

NCT05691439
View directory record Official record
Conditions
Depression in Adolescence
Interventions
Sleep extension and advance, Regular sleep duration and timing
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
14 Years to 18 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 16, 2025 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional

Effects of Sleep, Fatigue, and Timing of Post-dates Inductions Among Nulliparas

NCT01542151
View directory record Official record
Conditions
Pregnancy, Prolonged
Interventions
Time of labor induction
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
14 Years and older · Female only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Mar 25, 2015 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Changes in 24-hour Activity Cycle Behaviors During a Time-Restricted Eating Intervention in College-Aged Women

NCT07520786
View directory record Official record
Conditions
Sleep Quality, Compliance, Physical Activity, Sedentary Behaviors, Sleep Duration
Interventions
Time Restricted Eating, Control
Behavioral
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 26 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Exploratory Study of Melatonin Induced Sleep Regularization in Severe Brain Injury

NCT02732288
View directory record Official record
Conditions
Disorders of Consciousness
Interventions
melatonin
Dietary Supplement
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 29, 2023 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional

Impact of Short and Mistimed Sleep on Adolescents With ADHD: The Adolescent Attention and Circadian Timing Study

NCT07684417
View directory record Official record
Conditions
ADHD
Interventions
Aligned sleep extension, Misaligned sleep extension
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
13 Years to 17 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Active, not recruiting Not applicable Interventional

Flashed Light Therapy for Adolescents With ADHD and Delayed Sleep Timing

NCT06036420
View directory record Official record
Conditions
ADHD
Interventions
Flashed Light Therapy, Videoconference-delivered Cognitive Behavioral Therapy
Device · Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
14 Years to 17 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 5, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sleep and Metabolism

NCT05775627
View directory record Official record
Conditions
Sleep Deprivation, Obesity, Glucose Intolerance, Weight Gain, Food Selection
Interventions
Sleep Restriction
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 2, 2024 · Synced Sep 5, 2026, 6:49 AM EDT
Completed No phase listed Observational

Validation of Circadian Biomarkers in Patients With Sleep Disorders

NCT04690504
View directory record Official record
Conditions
Sleep Disorders, Circadian Rhythm, Circadian Rhythm Disorders, Circadian Rhythm Sleep Disorder, Advanced Sleep Phase Syndrome (ASPS), Delayed Sleep Phase Syndrome, Sleep Wake Disorders, Sleep Disorder
Interventions
dim light melatonin onset (DLMO)
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 5, 2024 · Synced Sep 5, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Experimental Manipulation of Sleep and Circadian Rhythms and the Role Played on Reward Function in Teens

NCT04792697
View directory record Official record
Conditions
Delayed Sleep Phase Syndrome
Interventions
Increase morning bright light, Decrease evening blue light, Sleep Scheduling, Monitor sleep, mood, and substance use
Other · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
13 Years to 15 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 5, 2026, 6:49 AM EDT