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)
- RecruitingPhase 3
A Study to Evaluate the Efficacy, Safety and Tolerability of ALKS 2680 in Adults With Narcolepsy Type 1 (Brilliance NT1 - 304)
Alkermes, Inc.
- Location
- Brandon, FL + 14 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 3
AMAZE 4: A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight and Obstructive Sleep Apnoea Treated With Positive Airway Pressure Lose Weight and Improve Sleep Apnoea
Novo Nordisk A/S
- Location
- Gilbert, AZ + 18 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2/Phase 3
A Study to Investigate the Effects of Cleminorexton Compared With Placebo in the Treatment of Participants With Central Disorders of Hypersomnolence
Centessa Pharmaceuticals (UK) Limited
- Location
- Birmingham, AL + 19 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 3
Phase 3 Study of Adjunctive Treatment With Seltorexant in Adult and Elderly Participants With Major Depressive Disorder and Insomnia Symptoms
Janssen Research & Development, LLC
- Location
- Tucson, AZ + 41 other US sites
- Eligibility basics
- Ages 18–74
- Recruiting
Randomized Evaluation of Natural Extract for Menopausal Wellness (RENEW)
India Glycols Ltd
- Location
- New Port Richey, FL
- Eligibility basics
- Ages 45–60 · Women only
- RecruitingPhase 3
A Study of Suvorexant (MK-4305) for the Treatment of Insomnia Disorder in Participants With Opioid Use Disorder (MK-4305-098)
Merck Sharp & Dohme LLC
- Location
- Garden Grove, CA + 12 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 2/Phase 3
A Study of TAK-360 in People With Narcolepsy or Idiopathic Hypersomnia
Takeda
- Location
- Chula Vista, CA + 16 other US sites
- Eligibility basics
- Ages 18–71
- RecruitingPhase 3
A Phase 3 Efficacy and Safety Study of HBS-301 in Participants With Idiopathic Hypersomnia (IH)
Harmony Biosciences Management, Inc.
- Location
- Birmingham, AL + 39 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
AMAZE 3: A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight and Obstructive Sleep Apnoea Not Treated With Positive Airway Pressure Lose Weight and Improve Sleep Apnoea
Novo Nordisk A/S
- Location
- San Diego, CA + 14 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Phase 3 Study to Evaluate the Efficacy and Safety of Samelisant in Patients With Narcolepsy (AWAKE)
Suven Life Sciences Limited
- Location
- Columbia, SC
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Phase 3 Efficacy and Safety Study of HBS-301 in Participants With Narcolepsy
Harmony Biosciences Management, Inc.
- Location
- Peoria, AZ + 26 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study of Pitolisant in Patients With Prader-Willi Syndrome
Harmony Biosciences Management, Inc.
- Location
- Los Angeles, CA + 18 other US sites
- Eligibility basics
- Ages 6+
- Recruiting
Assessment of CSF Shunt Flow During Activities of Daily Living and Sleep With a Thermal Measurement Device
Rhaeos, Inc.
- Location
- Chicago, IL + 1 other US site
- Eligibility basics
- Ages 2+
- RecruitingPhase 3
Studying Solriamfetol Modulation of TAAR-1, Dopamine, and Norepinephrine in Shift Work Disorder (SUSTAIN)
Axsome Therapeutics, Inc.
- Location
- Auburn, AL + 37 other US sites
- Eligibility basics
- Ages 18–65
- Recruiting
Effectiveness of Audio Cues to Achieve Positional Therapy in Patients With Positional Obstructive Sleep Apnea
SleepDev, Inc
- Location
- Burlingame, CA
- Eligibility basics
- Ages 18–75
- RecruitingPhase 1
ISP-001: Sleeping Beauty Transposon-Engineered B Cells for MPS I
Immusoft of CA, Inc.
- Location
- Oakland, CA + 1 other US site
- Eligibility basics
- Ages 10+
- RecruitingPhase 2
A Study of TAK-360 in Adults With Idiopathic Hypersomnia
Takeda
- Location
- Redwood City, CA + 12 other US sites
- Eligibility basics
- Ages 18–70
- Recruiting
Optimizing Extended-Duration (XD-) TOMAC Therapy for Restless Legs Syndrome (RLS)
Noctrix Health, Inc.
- Location
- Pleasanton, CA
- Eligibility basics
- Ages 21+
- RecruitingPhase 2
A Study of TAK-360 in Adults With Narcolepsy Type 1 (Narcolepsy With Cataplexy)
Takeda
- Location
- Miami, FL + 1 other US site
- Eligibility basics
- Ages 18–70
- RecruitingPhase 3
Evaluating the Effects of Tasimelteon vs. Placebo in Treating Pediatric Insomnia
Vanda Pharmaceuticals
- Location
- Dothan, AL + 18 other US sites
- Eligibility basics
- Ages 2–17
- RecruitingPhase 2
A Study to Evaluate the Efficacy and Safety of E2086 in Adults With Narcolepsy
Eisai Inc.
- Location
- Columbia, SC
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
A Study of ORX750 in Participants With Narcolepsy and Idiopathic Hypersomnia
Centessa Pharmaceuticals (UK) Limited
- Location
- Auburn, AL + 26 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingPhase 2
A Long-term Extension Study of ORX750 in Participants With Narcolepsy and Idiopathic Hypersomnia
Centessa Pharmaceuticals (UK) Limited
- Location
- Auburn, AL + 18 other US sites
- Eligibility basics
- Ages 18–65
- Recruiting
Severe Label Expansion for EVO Products Trial
ProSomnus Sleep Technologies
- Location
- New York, NY + 1 other US site
- 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.