Clear inputs
The breakdown shows what contributed and what was missing.
How it works
Body Readiness
Body Readiness combines available sleep duration, HRV, and resting heart rate readings into a score. Open its explanation to see which inputs contributed.
- On-device score
- Three inputs
- Fixed reference ranges
How this works in Dreamline
See how the score was made
The current calculation uses the same reference ranges for everyone: HRV from 20–100 ms, an eight-hour sleep target, and resting heart rate from 50–80 bpm. The weights are 40%, 40%, and 20%.
•Read the score and its input coverage in Rhythm
•Open the breakdown for the contributing values
•Compare your saved history over time
•Pair the reading with how you feel
Read with context
Read it in context
This wellness score is not a clinical assessment and is not normalized to your personal baseline. A change cannot identify its cause.
•Missing readings reduce the available context
•Measurement conditions can affect a reading
•A score does not explain a dream
•Persistent symptoms deserve professional advice
Why it matters
A useful prompt for the morning
A score can help you pause and consider what the day asks of you. Your own experience remains part of that decision.
Local history
Readiness and Sentinel history stay on your iPhone in the current app.
AI consent
Optional daily writing may use coarse body context with your consent; raw Health samples stay on-device.