For shift workers, on-call staff, and anyone whose sleep schedule moves around.
Most sleep apps tell you how long you slept. Somnos focuses on schedule drift — when you sleep, how much your onset time varies, and whether rest happens during daylight hours that may signal shift-work or irregular patterns.
This is a wellness self-tracking project. It does not diagnose medical conditions or determine fitness for duty.
Open the interactive demo report →
The demo uses 100% synthetic data shaped like a shift-worker pattern (delayed night sleep + occasional afternoon blocks). No real user health records are included.
What you'll see:
- Irregularity score (0–100)
- Interactive Plotly timeline and onset charts
- Personalized wellness recommendations
- Daylight / irregular sleep flags
- Nurses and healthcare staff on rotating shifts
- Security, logistics, and emergency workers
- Anyone whose sleep onset drifts week to week
- People who nap during the day but track mostly "night" sleep elsewhere
- Runs locally on your Mac from an Apple Health export
- No account, no cloud upload, no third-party APIs
- Your export never needs to leave your machine
Full install instructions will live here when the tool repository opens publicly. For now:
- Explore the demo report
- Share feedback (link below)
- Watch this repo for the open-source release
See docs/TRY_IT.md for the planned local workflow.
Somnos is at proof-of-concept stage. If you work irregular hours, we'd love to know:
- Does the irregularity score match how your schedule feels?
- Did any recommendation feel actionable?
- Would you re-run this every 1–2 weeks?
| Metric | Meaning |
|---|---|
| Irregularity score | How much your sleep onset varies (higher = more drift) |
| Daylight sleep flags | Sessions starting during typical waking hours |
| Onset drift | Whether bedtimes are shifting earlier or later over time |
| Timeline | Recent sleep blocks mapped to the 24-hour clock |
Now POC demo + feedback
Next Open-source local tool (Health export → HTML report)
Later Accounts, weekly reports, enterprise occupational health
Much later Optional Apple Watch capture layer
Demo and documentation: MIT. See LICENSE.
Somnos provides wellness and occupational self-tracking insights only. It is not a medical device and does not provide medical advice. If sleep difficulty affects your daily life, consult a qualified health professional.