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Better sleep, sharper mind? new study investigates

NCT ID NCT07387783

Knowledge-focused Sponsor: Uskudar University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study looks at how sleep quality relates to cognitive functions like attention, memory, and problem-solving in 75 healthy adults aged 18-35. Participants will wear a sleep tracker for five nights and complete thinking tests. The goal is to better understand the link between sleep and brain performance.

What this could mean

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

What this could lead to
If successful, this study could help clarify how sleep affects memory, attention, and decision-making in healthy young people.
What could go wrong
This is an observational study, not a treatment trial, so it cannot prove cause and effect. Results may not apply to people with sleep disorders or older adults.

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

Study facts

What this study's own registry entry says, in plain language.

Participants

About 75 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2026

Expected to finish

Aug 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population consists of healthy young adults aged between 18 and 35 years. Participants are recruited from a non-clinical population and are required to be fluent in Turkish to ensure valid administration of cognitive assessments. Individuals with self-reported good general health and without active medical, neurological, or psychiatric conditions that may affect sleep or cognitive functioning are eligible. All participants are able and willing to comply with the study procedures, including wearing a wearable sleep monitoring device for five consecutive days and completing a single-session cognitive assessment.

Ages

18 to 35 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Between 18 and 35 years. * Ability and willingness to provide written informed consent. * Sufficient ability to read, understand, and communicate in Turkish, the language in which the assessments are administered. * Self-reported good general health, with no active medical or psychiatric conditions that significantly affect daily functioning. * Willingness and ability to wear a wearable sleep monitoring device continuously for five consecutive days and to comply with device usage instructions. * Ability to attend and complete a single-session cognitive assessment Exclusion Criteria: * Regular or frequent use of medications known to affect sleep or cognitive function, including sedative-hypnotics, benzodiazepines, antipsychotics, stimulants, opioids, or similar agents. * Initiation of, or dose changes in, psychotropic medications within the past four weeks. * Being under the influence of alcohol or illicit substances on the day of cognitive testing. * Engagement in night shift work or rotating shift schedules within the past one month. * Travel across time zones resulting in a time difference of two hours or more within the past two weeks. * Uncontrolled high daily intake of caffeine (e.g., \>400 mg/day) and unwillingness to reduce consumption during the study period. * Color blindness or other color vision deficiencies, due to their potential impact on Stroop Test performance. * Dermatological conditions, allergies, or skin lesions at the wrist that prevent wearing the device, or refusal to wear the device as required. * Acute illness within the past two weeks, including febrile infections, severe pain, or other acute medical conditions that may temporarily affect sleep or cognitive performance. * Pregnancy or early postpartum period.

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Conditions

The condition(s) this trial relates to.

insomnia

As listed by the trial registrant

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

Cognitive functions Sleep quality

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Üsküdar University

    RECRUITING

    Istanbul, Turkey (Türkiye)

More trials for these conditions

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