Power naps get a jolt: electrical brain stimulation aims to fix Non-Restorative sleep

NCT ID NCT07090135

Recruiting now Symptom relief Sponsor: University of Wisconsin, Madison Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Aug 11, 2026 · Updated 4 times

Summary

This study tests whether gentle electrical stimulation to the brain during a short nap can improve the quality of sleep and reduce mental tiredness. Twenty-five adults with non-restorative sleep will take two naps while wearing a special cap that records brain activity and delivers mild stimulation. Researchers will measure changes in brain waves and sleep quality to see if this approach helps sleep feel more restorative.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: transcranial electrical stimulation with temporal interference (TES-TI) device
What this could lead to: If it works, this could point toward a drug-free way to improve sleep quality and reduce daytime fatigue.
What could go wrong: This is a very early, small study (25 people) testing a device, not a proven treatment. The effects may be small or not last, and the stimulation might cause discomfort or not work for everyone.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

HEALTHY VOLUNTEER NON-RESTORATIVE SLEEP

Contacts and locations

Locations

University of Wisconsin - Madison
RECRUITING

Madison, Wisconsin, 53705, United States

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