"I slept 9 hours" is not a recovery metric.
Recovery is:
— HRV above your 7-day baseline
— Deep sleep >20% of total
— REM cycle completed at least twice
— Resting heart rate within 4bpm of your personal floor
Duration is the easiest thing to measure.
It's rarely the whole story.
Dear Diary,
The Sleep Coach says that the harder you try to sleep, the longer it takes.
I have been trying very hard for 66 million years.
This explains a lot.
— Dino 🦖