Your heart at night
HRV, lowest heart rate and night-time dip, compared with your normal: what your watch measures while you sleep.
What you need
A watch linked to Apple Health (or Health Connect on Android) that measures your heart, worn at night. Without a watch, Bogeton shows daytime averages, which are less accurate. See Connect Apple Health.
Where to see it
In the Activity tab, tap Resting heart rate (in Your body), or the card on the Today screen when your heart has changed.
Last night
In the morning, your night is compared with your normal, worked out from your 60 previous nights:
- HRV: your heart rate variability. Higher means your body is recovering better.
- Lowest heart rate of the night, and when it happens: in the first half of the night or towards the end. A heart that is lowest late in the night often follows a late dinner, alcohol or an evening workout.
- Average heart rate and Night-time dip: how much your heart slows while you sleep. The reference is 10% or more.
- Breathing and Wrist (temperature) when your watch measures them.
Each reading is Below your normal, Within your normal or Above your normal. It takes a few nights with the watch to build your normal.
What your heart shows
When something moves out of your normal for several days in a row, Bogeton says so plainly: an HRV below your normal since a date, a higher heart rate than usual, faster breathing two nights in a row. A calmer day and a full night usually help it come back up.