Journal article

The Sleep of the Ring: Comparison of the OURA Sleep Tracker Against Polysomnography

Massimiliano de Zambotti, Leonardo Rosas, Ian M Colrain, Fiona C Baker

Behavioral Sleep Medicine | ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD | Published : 2019

Abstract

OBJECTIVE/BACKGROUND: To evaluate the performance of a multisensor sleep-tracker (ŌURA ring) against polysomnography (PSG) in measuring sleep and sleep stages. PARTICIPANTS: Forty-one healthy adolescents and young adults (13 females; Age: 17.2 ± 2.4 years). METHODS: Sleep data were recorded using the ŌURA ring and standard PSG on a single laboratory overnight. Metrics were compared using Bland-Altman plots and epoch-by-epoch (EBE) analysis. RESULTS: Summary variables for sleep onset latency (SOL), total sleep time (TST), and wake after sleep onset (WASO) were not different between ŌURA ring and PSG. PSG-ŌURA discrepancies for WASO were greater in participants with more PSG-defined WASO (p < ..

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Grants

Awarded by National Consortium on Alcohol and NeuroDevelopment in Adolescence (NCANDA)


Funding Acknowledgements

This study was supported by the National Consortium on Alcohol and NeuroDevelopment in Adolescence (NCANDA); grant: AA021696 (IMC+FCB).