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Can a bed that changes temperature deepen your sleep?

NCT ID NCT04257825

Symptom relief Sponsor: ProofPilot Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 15, 2026 · Last updated Sep 16, 2026 · Updated 1 time

Summary

Researchers want to know if using a temperature-controlled mattress pad changes sleep quality and deep sleep. The study includes people who already own a Chili Sleep System and an Oura Ring. For two out of four weeks, participants stop using the pad while wearing the ring and answering sleep questionnaires. The goal is to see how the pad affects sleep duration and depth.

What this could mean

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

Active substance
a temperature-controlled mattress pad that cools or warms the bed
What this could lead to
If the pad helps, it could offer a simple way for people to improve deep sleep without medication.
What could go wrong
This is a small, short study in people who already own the device, so the results may not apply to everyone. Sleep changes can also come from other factors.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

133 people

The number who actually took part.

Started

Oct 2019

Finished

Feb 2020

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Ages

18 to 100 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: * has a chili sleep system * has an Oura Ring Exclusion Criteria: * medically treatable issue * recent injury * expected significant travel over study period

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Conditions

The condition(s) this trial relates to.

sleep disorder

As listed by the trial registrant

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

Sleep

Contacts and locations

Locations

  • ProofPilot (Virtual Study: https://p.proofpilot.com)

    New York, New York, 10003, United States

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