Overview

This score measures how much of the night your five-minute average heart rate stayed at or below 52 bpm.

• 52 bpm is your current minimum-HR threshold.
• Time to settle requires 15 continuous minutes in the zone.
• The score is separate from Garmin’s Sleep Score and does not affect it.

This is an experimental personal trend metric, not a medical rating. It should become more reliable as more granular nights accumulate.