Sleep Behaviors in Pregnancy Study

This study is looking at how pregnant women sleep and if a special device can help improve sleep habits. Researchers want to understand how much time you spend in different sleeping positions, especially on your back, and how often you change positions during the night. You might be given a "Deactivated Pregnancy Coach" to simply track your sleep, or an "Active Pregnancy Coach" that will send you alerts if you're sleeping on your back. The study aims to see if the "Active Pregnancy Coach" can help you change your sleep behaviors. To join, you need to be at least 28 weeks pregnant, receiving prenatal care at Michigan Medicine, and have an Android or iPhone smartphone. The study is currently unclear on its recruitment status.

Study design
This is an interventional study planning to enroll 500 women. It is not specified if it is randomized or blinded.
What's involved
You would use a device called a Pregnancy Coach to monitor your sleep until delivery, which is approximately 12 weeks.
Compensation
Not stated in the trial record.
Follow-up
Your sleep will be monitored until delivery, which is approximately 12 weeks.

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NCT04205370

Sleep Behaviors in Pregnancy

Recruiting
NAAges 18+Interventional
University of Michigan
~500 participants
Updated 2026-05-11 on ClinicalTrials.gov
What's tested:Deactivated Pregnancy CoachActive Pregnancy Coach

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Proportion of sleep time spent in the supine position as measured by the Pregnancy Coach
Measured over Until delivery, approximately 12 weeks
Sleep
Pregnancy Complications
1 sites across 1 states
Michigan1
  • Louise O'Brien, PhD · PRINCIPAL_INVESTIGATOR · University of Michigan

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Eligibility criteria

Inclusion

At least 28 weeks pregnant
Receiving pre-natal care at Michigan Medicine
Have either and Android or iPhone smartphone

Exclusion

Less then 28 weeks pregnant
Receiving pre-natal care external to Michigan Medicine
Does not poses a smartphone
  • Proportion of sleep time spent in the supine position as measured by the Pregnancy CoachUntil delivery, approximately 12 weeks

    Will be conducted using the naturalistic arm (deactivated device). Simple descriptive statistics to report the average number of minutes and the average proportion of supine sleep per week.