Does your sleep shape how generous you are? new study investigates

NCT ID NCT07697092

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 13, 2026 · Last updated Jul 14, 2026 · Updated 1 time

Summary

This observational study looks at whether adults' sleep quality, sleep timing, and natural chronotype (morning vs. evening preference) are linked to how they share resources with others. Participants fill out sleep questionnaires, keep a 7-day sleep diary, and play a brief computer game where they make hypothetical allocation choices. The goal is to describe associations between everyday sleep patterns and prosocial behavior, without any treatment or sleep changes.

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 links are found, this could inform how sleep habits influence generosity and social behavior.
What could go wrong
This is a small observational study that only looks for associations, not cause and effect. Results may not apply to everyone.

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 128 people

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

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Jun 2028

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

Adults aged 18 years or above will be recruited as healthy volunteers from university and community settings. Eligible participants may include university students, university staff, and community adults who can understand English or Chinese study materials and complete computer-based behavioural tasks, sleep-related questionnaires, and a 7-day sleep diary. The study is not limited to PolyU students and is not designed to recruit participants with any specific sleep disorder, mental health condition, or clinical diagnosis.

Ages

18 years and older

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: * Aged 18 years or above. * Able to provide informed consent. * Able to understand English or Chinese study materials. * Able to complete computer-based behavioural tasks and self-report questionnaires. * Willing to complete a 7-day sleep diary. Exclusion Criteria: * Aged under 18 years. * Unable to provide informed consent. * Unable to complete study materials in English or Chinese. * Prior participation in the same study. * Self-reported condition or circumstance that would make participation in a brief computer-based decision-making task or sleep-related questionnaires inappropriate or distressing.

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Conditions

The condition(s) this trial relates to.

Altruism insomnia

As listed by the trial registrant

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

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

  • The Hong Kong Polytechnic University

    Hung Hom, Kowloon, Hong Kong

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