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Showing 1–20 of 20 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: No-nap Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Impact of Reactivation During Sleep on the Consolidation of Abstract Information in Humans

NCT05746299
View directory record Official record
Conditions
Memory Consolidation
Interventions
Congruent vs. Incongruent, Immediate vs. Awake vs. Asleep, Targeted memory reactivation (TMR)
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 35 Years
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced Sep 3, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Pilot Study Evaluating Go NAP SACC's Web-based Nutrition Tool for Child Care

NCT02889198
View directory record Official record
Conditions
Environment Related Disease
Interventions
Go NAP SACC
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 16, 2017 · Synced Sep 3, 2026, 2:24 PM EDT
Not listed Not applicable Interventional

Investigating How Sleep After Training Can Affect the Learning of a Motor Skill in Individuals With Brain Injury

NCT04810442
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Nap
Other
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Sep 3, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Intra-Shift Napping on EMS Cardiovascular Health

NCT04469803
View directory record Official record
Conditions
Blood Pressure, Heart Rate Variability
Interventions
Intra-Shift Napping
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 100 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Sep 3, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Rapid Eye Movement Restoration and Enhancement for Sleep-deprived Trauma-adaptation

NCT06547086
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Transcranial electrical stimulation with Temporal Interference (TES-TI)
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 50 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 3, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Night Shift Work, On-shift Napping, and Endothelial Function: A Pilot Study

NCT05436951
View directory record Official record
Conditions
Blood Pressure, Endothelial Dysfunction
Interventions
Brief on-shift nap
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 100 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2024 · Synced Sep 3, 2026, 2:24 PM EDT
Recruiting Phase 1 Interventional

Regulation of Emotion, Sleep Extension, and mTBI

NCT06883006
View directory record Official record
Conditions
Mild Traumatic Brain Injury
Interventions
Sleep Extension
Behavioral
Lead sponsor
Merrimack College
Other
Eligibility
18 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
North Andover, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Sep 3, 2026, 2:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Power Nap With TES-TI

NCT07090135
View directory record Official record
Conditions
Non-restorative Sleep, Healthy Volunteer
Interventions
Transcranial electrical stimulation with Temporal Interference (TES-TI)
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 75 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 3, 2026, 2:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Neurobehavioral Changes Following Spaceflight Stressors

NCT07293494
View directory record Official record
Conditions
Stressor, Individual, Alcohol Impairment, Sleep Deprivation, Impairment, Cognitive
Interventions
Alcohol Administration, Sleep Deprivation, Control
Other · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 60 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 3, 2026, 2:24 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Breath Biomarkers for Sleep Loss and Circadian Timing

NCT03980340
View directory record Official record
Conditions
Shift-Work Sleep Disorder, Shift Work Type Circadian Rhythm Sleep Disorder, Sleep Disorders, Circadian Rhythm, Sleep Disorders, Intrinsic, Advanced Sleep Phase Syndrome (ASPS), Advanced Sleep Phase Syndrome, Advanced Sleep Phase, Delayed Sleep Phase, Delayed Sleep Phase Syndrome, Non-24 Hour Sleep-Wake Disorder, Irregular Sleep-Wake Syndrome
Interventions
Short Nap Intervention, No Nap Intervention
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 2, 2025 · Synced Sep 3, 2026, 2:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Impact of Hyperarousal on Simple and Complex Cognitive Task Performance Among Insomnia Sufferers

NCT02290405
View directory record Official record
Conditions
Insomnia, Primary Insomnia, Chronic Insomnia
Interventions
Multiple Sleep Latency Test (MSLT)
Behavioral
Lead sponsor
Jack Edinger, PhD
Other
Eligibility
21 Years to 80 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 29, 2021 · Synced Sep 3, 2026, 2:24 PM EDT
Completed Phase 3 Interventional

Tasimelteon for the Treatment of Non-24-hour Sleep-Wake Disorder (N24HSWD) in Blind Individuals With no Light Perception

NCT01429116
View directory record Official record
Conditions
Non-24-Hour Sleep-Wake Disorder
Interventions
tasimelteon
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
22
States / cities
Phoenix, Arizona • Orange, California • Palo Alto, California + 19 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2015 · Synced Sep 3, 2026, 2:24 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Artemis Sleep Countermeasures

NCT06531733
View directory record Official record
Conditions
Fatigue
Interventions
Sleep Promoting (pink noise), Wake Promoting (blue enriched light plus a nap)
Device
Lead sponsor
National Aeronautics and Space Administration (NASA)
Federal
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Mountain View, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2024 · Synced Sep 3, 2026, 2:24 PM EDT
Completed Not applicable Interventional

CBT-I for Sleep, Pain, and Inflammation in Crohn's Disease

NCT05034159
View directory record Official record
Conditions
Crohn Disease, Insomnia, Sleep Disturbance, Pain, Inflammation
Interventions
Cognitive Behavioral Therapy for Insomnia
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated May 17, 2023 · Synced Sep 3, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Wrist-worn Device That Produces a Small Vibration on Sleep and Performance That Can Occur During and After Night Shift Work

NCT06665672
View directory record Official record
Conditions
Sleep Duration, Psychomotor Performance
Interventions
Wrist worn vibro-acoustic device
Device
Lead sponsor
Daniel Patterson, PhD, NRP
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Sep 3, 2026, 2:24 PM EDT
Recruiting No phase listed Observational

Patient Registry of Blind Subjects With Sleep-related Problems

NCT01195558
View directory record Official record
Conditions
Sleep-wake Disorder in Blind Individuals
Interventions
Data collection on blindness and sleep problems
Other
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
Not listed
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2030
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 23, 2020 · Synced Sep 3, 2026, 2:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Operational Naps on Blood Pressure and Performance Among Night Shift Workers

NCT07217769
View directory record Official record
Conditions
Shift Work
Interventions
No-nap, 15-min nap, 30-min nap, 45-min nap, 60-min nap
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 3, 2026, 2:24 PM EDT
Completed No phase listed Observational

Sleep/Wake Protocol Implementation to Improve Sleep Quality in the ICU

NCT03313115
View directory record Official record
Conditions
Sleep Deprivation, Delirium
Interventions
Sleep/Wake Protocol
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
685 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 24, 2023 · Synced Sep 3, 2026, 2:24 PM EDT
Terminated Not applicable Interventional

Effect and Utilization of Protected Time Among Interns on Extended Duty-Hour Call Shifts

NCT00983008
View directory record Official record
Conditions
Fatigue, Sleep Deprivation, Depression
Interventions
Protected time and Dedicated time
Behavioral
Lead sponsor
Providence Health & Services
Other
Eligibility
Not listed
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 25, 2019 · Synced Sep 3, 2026, 2:24 PM EDT
Completed No phase listed Observational

Spatial Neglect and Delirium After Stroke

NCT03349411
View directory record Official record
Conditions
Stroke, Delirium, Spatial Neglect
Interventions
Confusion Assessment Method, Behavioral Inattention Test, Magnetic Resonance Imaging, Florida Mental Status Examination, Montreal Cognitive Assessment, Geriatric Depression Scale, Kessler Foundation Neglect Assessment Process
Diagnostic Test
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years to 100 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
2
States / cities
West Orange, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2021 · Synced Sep 3, 2026, 2:24 PM EDT