Sleep Metrics
3 articles
Why Your Oura and Apple Watch Disagree on “Deep Sleep” by 45 Minutes
Your Oura Ring and Apple Watch disagree on deep sleep duration because they utilize fundamentally different…
The “90-Minute Cycle” Myth: How Your Wearable Actually Calculates Sleep Stages
Your smartwatch does not use a rigid, repeating 90-minute timer to divide your sleep into perfect…
Sleep Metric Diagnostics: REM, Deep, & Efficiency Scores
Consumer wearables function as night-shift diagnostic tools for your body, but software interpretations of sleep data…