Sleep
How sleep length, efficiency, timing, and stage mix reach the Condition Score — and why Grio keeps no sleep-debt counter.
2 articles
Articles in this category
- Sleep stages, efficiency, and what a wearable can actually measure What deep, REM, and core sleep mean, how accurately a wrist device can label them, and which parts of your night Grio's scoring actually uses.
- Sleep debt, readiness, and what Grio does instead Grio keeps no sleep-debt counter and publishes no readiness score. Here is what it tracks instead, and why the difference is deliberate.
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