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Better sleep, better blood sugar? a trial puts sleep coaching to the test

NCT ID NCT04506151

Disease control Sponsor: University of Illinois at Chicago 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 27, 2026 · Last updated Aug 28, 2026 · Updated 1 time

Summary

Many adults with type 1 diabetes don't get enough sleep, which can make blood sugar harder to control. This trial tests a 12-week program called Sleep-Opt that uses wearable sleep trackers, phone coaching, and educational materials to improve sleep habits. Researchers will measure sleep patterns and blood sugar levels in 144 adults aged 18 to 65 with type 1 diabetes. The goal is to see if better sleep can lead to better glucose control and a lower risk of diabetes complications.

What this could mean

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

Active substance
A 12-week behavioral sleep program called Sleep-Opt, using wearable sleep tracking, telephone coaching, and educational content.
What this could lead to
If it works, this program could help adults with type 1 diabetes improve blood sugar control and reduce the risk of diabetes complications.
What could go wrong
The trial is relatively small and early, and the program may not improve sleep or blood sugar for everyone. Participants must be willing to follow the program and use a smartphone.

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

144 people

The number who actually took part.

Started

Jan 2021

Finished

Dec 2025

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.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * adults aged 18-65 years * clinical diagnosis of type 1 diabetes minimum of one year * reported habitual sleep variability (1 hour/week or more) or sleep duration less than 6.5 hrs/night during work- or weekdays (confirmed with actigraphy sleep watch) * a desire to improve sleep * own a smartphone Exclusion Criteria: * insomnia symptoms * at high risk for obstructive sleep apnea * severe hypoglycemia episode in the past 6 months (e.g. loss of consciousness) * A1C greater than 10% * rotating shift or night shift work * use of sleep medications/aids * renal impairment (estimated glomerular filtration rate \< 45 ml/min) * significant current medical morbidities (such as heart failure, cirrhosis, chronic obstructive pulmonary disease requiring oxygen, active treatment for cancer, depression, history of stroke with neurological deficits * breast feeding, pregnant, or planning pregnancy

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Conditions

The condition(s) this trial relates to.

type 1 diabetes mellitus

As listed by the trial registrant

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

Type 1 diabetes

Contacts and locations

Locations

  • University of Illinois Chicago

    Chicago, Illinois, 60612, United States

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