Recruiting

Oura Ring

Sponsor:

Ouraring Inc.

Code:

NCT07908199

Conditions

Healthy Adult

Sleep Apnea

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Accepted

Study Details

Brief summary:

The current study intends to collect data from Oura Ring time-locked to ground truth medical sleep diagnostic gold-standard polysomnography (PSG) for product research and development, investigational algorithm validation, and scientific dissemination.

Conditions

Healthy Adult

Sleep Apnea

Study ID

NCT07908199

Start date

Aug 28, 2026

Status verified date

Oct, 2026

Completion date

Jan 31, 2027

Anticipated

Primary completion date

Dec 3, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Accepted

Healthy sample

Inclusion Criteria:

  • Ages 18-85 y
  • Body mass index (BMI) <30 kg/m2
  • Self-reported habitual sleep duration of 6-9 hours
  • Willing and able to comply with the study requirements

Exclusion Criteria:

  • High risk for mild-to-severe sleep apnea
  • Individuals with pacemakers
  • Non-English speakers
  • Individuals who are unwilling or unable to provide informed consent or comply with study procedures
  • Current active illness (e.g., cold, flu, bronchitis, suspected COVID-19)
  • Have known allergies or previous reaction to titanium or medical-grade plastic
  • Report regularly sleeping <4 hours per night
  • Restricted peripheral circulation (e.g. Raynaud's disease)
  • Individuals with physical limitations or deformities or skin conditions that would preclude safely wearing up to two Oura Ring devices or reference polysomnography equipment
  • Individuals that have completed overnight rotating shift-work in the past 2 weeks
  • Individuals that have traveled across time-zones in the past week
  • Current use (within the past month) of the following medications/classes, pending investigator decision: Stimulants (Adderall, Ritalin); Sodium oxybate; Heroin, cocaine, or methamphetamines; Non-stimulant wake promoting agents (e.g. modafinil, pitolisant, etc.); Prescription sleep medication
  • Individuals employed by a company that develops or sells medical and/or fitness devices in a similar space (e.g. wearables) or are technology journalists (e.g. professional bloggers, TV, magazine, newspaper reporters, etc.)

Sleep Apnea sample Inclusion Criteria

  • High risk for mild-to-severe sleep apnea, defined by at least one of the following:
  • Prior clinical diagnosis of obstructive sleep apnea (OSA)
  • Currently seeking or actively undergoing treatment for sleep apnea (e.g., PAP therapy, oral appliance)
  • Documented apnea-hypopnea index (AHI) ≥5 events/hour from a previous sleep study
  • Self-reported Habitual sleep duration of 6-9 hours
  • Willing and able to comply with study requirements Exclusion criteria
  • Same as for Healthy Adult sample, with the exception of the "high risk for mild-to-moderate sleep apnea) criterion

Study Design

Enrollment

60 participants

Anticipated

Interventions and Outcome Measures

Arms

Healthy Adult

Healthy adults with no known sleep disorders

Adults with Sleep Apnea

High risk for mild-to-severe sleep apnea, defined by at least one of the following:

1. Prior clinical diagnosis of obstructive sleep apnea (OSA)
2. Currently seeking or actively undergoing treatment for sleep apnea (e.g., PAP therapy, oral appliance)
3. Documented apnea-hypopnea index (AHI) ≥5 events/hour from a previous sleep study

Primary outcome measure

  • Sleep staging performance (co-primary endpoint) [ Time Frame: Single time-point assessment post-overnight-PSG visit (baseline). ]
  • Signal quality performance (co-primary endpoint) [ Time Frame: Single time-point assessment post-overnight-PSG visit (baseline). ]

Central Contacts and Locations

Central contacts

Emma H Beisheim-Ryan, PT, DPT, PhD

585-975-9644emma.beisheim-ryan@ouraring.com

Locations

Clayton Sleep Institute Sleep Center

Recruiting

St Louis, Missouri, United States, 63123

Contacts

Matthew Uhles, MS, RPSGT, RST

314-645-5855uhlesm@claytonsleep.com

More Information

Sponsor

Ouraring Inc.

Last update posted

Nov 2, 2026

Last verified

Oct, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-11-03. This information was provided to ClinicalTrials.gov by Ouraring Inc. on 2026-11-02. Recruitment status is synced daily from ClinicalTrials.gov and may not reflect the sponsor's current status. Confirm during your call.