Study type
Sleep studies recruiting now
Sleep research includes insomnia, sleep apnea, narcolepsy and circadian rhythm studies. Some involve nights in a sleep lab; others use wearables or questionnaires at home.
227 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
Impact of Circulating and Tissue-specific Lipids on Vascular Function and Insulin Sensitivity in Chronic Night Shift Workers
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
High Intensity Interval Training (HIIT) to Reduce Frailty and Enhance Resilience in Older Veterans
VA Office of Research and Development
- Location
- Kansas City, MO
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
The Iowa ACEs and Sleep Cohort and Manipulating Sleep in Young Adults With ACEs Studies
Nathaniel Jenkins
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–29
- RecruitingHealthy volunteers
A Mobile App to Improve 24-Hour Movement Guideline Adherence in Preschoolers
University of Kansas Medical Center
- Location
- Kansas City, KS
- Eligibility basics
- Ages 3–4
- RecruitingHealthy volunteers
Immune Status After Being on Call for 24 Hrs
University of Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Optimization of Pediatric Tonsillectomy to IMprove AnaLgesia
Duke University
- Location
- Durham, NC
- Eligibility basics
- Ages 3–17
- RecruitingHealthy volunteers
NIA_Improving Function and Well-being by Improving Patient Memory: Transdiagnostic Sleep and Circadian Treatment
University of California, Berkeley
- Location
- Berkeley, CA
- Eligibility basics
- Ages 50+
- RecruitingHealthy volunteers
Morning Bright Light to Improve Sleep Quality in Veterans
Portland VA Medical Center
- Location
- Portand, OR
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Influence of Sleep on Cardiovascular Outcomes
Oregon Health and Science University
- Location
- Portland, OR
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Caffeine Optimization Versus Standard Caffeine Dosage (2B-2)
University of Arizona
- Location
- Tucson, AZ + 1 other US site
- Eligibility basics
- Ages 18–39
- RecruitingHealthy volunteers
Effect of Morning Light Exposure on Mood
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Effectiveness of Transcranial Magnetic Stimulation of the Default Mode Network to Improve Sleep - Clinical Trial
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
COVID-19 Health Adjustments in Nutrition, General Wellness, and Exercise
Indiana University
- Location
- Bloomington, IN
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Evaluating a Mat-Based Biometric Vibration System for Sleep and Daily Recovery
Florida International University
- Location
- Miami, FL
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Foundational Programs to Combat Clinician Stress
Lancaster General Hospital
- Location
- Boston, MA + 5 other US sites
- Eligibility basics
- Ages 25–70
- RecruitingHealthy volunteers
Improving Sleep Quality During Pregnancy Using an Oral Appliance
Texas A&M University
- Location
- Dallas, TX
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Pregnancy 24/7 Offspring Study
Kara Whitaker
- Location
- Iowa City, IA + 1 other US site
- Eligibility basics
- Ages 0 mo–47
- RecruitingHealthy volunteers
Countermeasures to Circadian Misalignment
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Non-invasive Nerve Stimulation for PTSD and Sleep
University of Florida
- Location
- Gainesville, FL + 2 other US sites
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Transcranial Electrical Stimulation (TES) at Slow Oscillation (SO) Frequency During NREM Sleep
U.S. Army Medical Research and Development Command
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–39
- RecruitingHealthy volunteers
Get Social Media and Risk-Reduction Training
University of Virginia
- Location
- Boston, MA
- Eligibility basics
- Any age listed · Women only
- RecruitingHealthy volunteers
Leveraging Social Networks to Improve Sleep and Mindfulness Among Older Adults in Residential Housing Facilities
Brigham and Women's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
Diagnosing Obstructive Sleep Apnea Using Electromyography of the Muscles of the Mouth
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Sleep-dependent Learning in Aging
University of Massachusetts, Amherst
- Location
- Amherst, MA
- Eligibility basics
- Ages 18–80
Who these studies look for
Sleep studies often ask about shift work, caffeine and alcohol use, and medicines that affect sleep. Overnight lab studies usually require you to keep a set sleep schedule beforehand.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Do sleep studies require staying overnight?
Not always. Some use a sleep lab, some use home monitoring. Where a record mentions an overnight or inpatient stay we flag it, but the site confirms the schedule.