Longevity & AgingOura Ring Matches Medical Sleep Tests Across 7 Key Sleep Metrics
A systematic review and meta-analysis published in OTO Open (2025) evaluated the Oura Ring against gold-standard sleep studies—polysomnography (PSG) and actigraphy—across 388 participants in 6 studies. No statistically significant differences were found between the Oura Ring and medical-grade methods for any of the seven measured sleep parameters: total sleep time, sleep efficiency, wake after sleep onset, sleep onset latency, light sleep time, deep sleep time, and REM sleep time. These findings support the Oura Ring as a reliable self-monitoring tool and suggest potential roles in prompting earlier clinical evaluation for sleep disorders or enabling remote patient monitoring.
