A sleep regularity score should explain timing consistency and routine drift.
Recent wearable research has made sleep regularity more interesting, but users still need plain evidence and personal baselines.
What is a sleep regularity score?
A sleep regularity score usually describes how consistent sleep and wake timing are across days, rather than only counting total sleep time.
Regularity is different from duration
Eight hours from 22:45 to 06:45 is not the same timing pattern as eight hours from 01:30 to 09:30.
daygauge can show both duration and timing regularity so users understand the difference.
The evidence model
Instead of saying your sleep was bad, daygauge should say your wake time varied by 73 minutes across the last 7 days, and confidence is medium because two nights were missing.
That gives the user a measurable target without guilt.
How it feeds the Life Index
Sleep regularity can influence the sleep and consistency components, but it should not dominate the score when data is incomplete.
Missing sleep data should lower confidence rather than creating false precision.
A regularity score should show the moving parts.
A single sleep score can hide the reason it changed. daygauge should split the signal into bedtime spread, wake-time spread, sleep midpoint drift, missing samples and whether the shift repeated on similar weekdays.
Wake time range: 06:42-08:05 · midpoint drift: +38 min · missing nights: 1 · confidence: medium · affected Sleep Baseline and Consistency.
That gives users a cleaner experiment: hold wake time steady for three days, then see whether sleep timing, movement start time and next-day notes move together.
Sources daygauge can cite without overclaiming.
These sources inform product wording and evidence labels. They should not be turned into personal diagnosis, treatment or disease-risk prediction.
- Sleep regularity and mortality: UK Biobank analysis
- Nature Medicine 2024 wearable sleep study
- CDC sleep duration recommendations
Research context only. daygauge does not diagnose, treat, prevent or predict disease risk. Personal medical concerns belong with a qualified clinician.
Related daygauge guides.
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iOS TestFlight first · paid app, one plan · evidence context, not medical advice