Pink noise at night may boost memory in early Alzheimer's

NCT ID NCT04570761

Completed Symptom relief Sponsor: University Hospital, Tours Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tested whether playing a gentle sound called 'pink noise' during deep sleep could strengthen memory in people with early Alzheimer's disease. Nineteen participants wore a special headband that delivered the noise on some nights and not on others. The goal was to see if the noise helped them recall word pairs better the next morning.

What this could mean

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

Active substance: pink noise delivered via a Dreem headband
What this could lead to: If it works, this could point toward a simple, non-invasive way to help people with Alzheimer's remember better by improving sleep-related memory consolidation.
What could go wrong: This is a very small, early proof-of-concept study with only 19 participants. The results may not apply to everyone, and the effect on memory might be small or not last long.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Alzheimer disease

As listed by the trial registrant

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

ALZHEIMER'S DISEASE(AD)

Contacts and locations

Locations

University Hospital of Tours

Tours, 37044, France

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Other studies related to the condition(s) this trial covers.