Assessment of Sleep by WHOOP in Ambulatory Subjects

ClinicalTrials.gov ID: NCT03692195

Open the official record

This page only displays public information reproduced from the official ClinicalTrials.gov record NCT03692195. It adds no medical advice, opinions, or eligibility judgments. The official record remains the source of truth for eligibility criteria, enrollment, and contact information.

View official ClinicalTrials.gov record → Back to search

ClinicalTrials.gov public records Last synced Nov 14, 2026, 11:49 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Polysomnography (PSG) is considered the 'gold standard' for objectively measuring different parameters of sleep, including total sleep time, quality of sleep, and distinguishing between sleep stages. However, PSG is costly, and tends to be burdensome in terms of set-up time and invasiveness during sleep. Wearable sleep-monitoring devices could prove to be a more practical alternative to PSG. Additionally, while EKG leads are typically what is utilized to measure heart rate (HR) and heart rate variability (HRV) throughout the night in a PSG set-up, every day-use HR monitors are also beneficial for individuals to evaluate their cardiovascular activity during different types of physical activities (including every day activities, exercise, and sleep), as well as their heart's ability to "recover" from a given activity. The investigators propose to study the effect of the WHOOP Strap 2.0 device on sleep perception and perform a methodological study to validate the accuracy of the the WHOOP Strap 2.0 device when measuring HR accuracy and HRV accuracy, and sleep quality and quantity with respect to PSG in healthy volunteers with no self-reported sleep disorders or debilitating medical conditions.

Study identification

NCT ID: NCT03692195
Recruitment status: Completed
Study type: Interventional
Phase: Not applicable
Lead sponsor: University of Arizona; Other
Enrollment: 35 participants

Conditions and interventions

Conditions

Sleep Quality

Interventions

WHOOP Strap 2.0 Device
No Device Other

Device · Other

Eligibility (public fields only)

Age range: 18 Years to 45 Years
Sex: All
Healthy volunteers: Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Nov 1, 2018 (Actual)
Primary completion: Jun 7, 2019 (Actual)
Completion: Jun 7, 2019 (Actual)
Last update posted: Aug 9, 2021

2018 – 2019

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Center for Sleep and Circadian Sciences	Tucson	Arizona	85719	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT03692195, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Aug 9, 2021 · Synced Nov 14, 2026