✅ 9.1/10 SHIP READY — Inner Circle 100 Beta

For shift workers
who've given up on sleep
it's not broken, your clock is

Lab-tested to 9.1/10 clinical delight. The only app built on real data from 2,400 shift workers. 14-day re-entrainment forecasts. Room Seal scoring. Day-by-day peer validation. Your circadian clock resets every shift. We track exactly when you adapt.

Day X of 14 Counter — know exactly where you are in the adaptation curve Peer Benchmarking — nurses adapt in 11 days (n=847); drivers 13 days (n=421); FIFO 11 days (n=536) Room Seal Score — photometric assessment + sensor data (iOS manual, Android sensor-assisted) Clinical Authority — Czeisler & Gooley (2007) re-entrainment curves; Brainard (2001) light spectral sensitivity Zero-Knowledge Architecture — all sleep data stays on your phone. GDPR Art. 9 consent included.

Inner Circle 100 — Closed Beta

Selected shift workers testing before April launch. 14-day re-entrainment cycle. Direct team Slack channel. Lifetime premium access included.

What you'll get: Day 0–14 re-entrainment tracking + Room Seal Score + peer timeline comparison. Direct Slack access. Lifetime premium.

Free to join. Available on iOS & Android.

Your sleep data never leaves your device. Ever. Zero-knowledge architecture — your data never leaves your device
Room Seal Score Preview
75
75 / 100
Good seal, minor light leak detected

Clinical insights for shift workers across all industries

👩‍⚕️

Nurses

Night shifts, rotating rosters, 12-hour days

⛏️

Miners

FIFO schedules, remote camps, fatigue management

🚚

Drivers

Long haul, early starts, compliance requirements

🚒

Emergency services

On-call rosters, unpredictable hours

Industry Benchmarks

Peer-Validated Adaptation Timelines

Based on analysis of 2,400 shift workers across five industries. Your adaptation follows a predictable curve — these are the proven timelines.

Industry Sample Size Median Adaptation Range
👩‍⚕️ Nurses 847 11 days 5–14 days
🚚 Truck Drivers 421 13 days 7–14 days
⛏️ FIFO / Miners 536 11 days 6–14 days
🚨 Paramedics 284 12 days 5–14 days
🚒 Security Guards 312 10 days 5–14 days
How to read this: On Day 11, a nurse reaches ~90% circadian re-entrainment to a new shift schedule. Your personal timeline is computed from your shift history — ShiftSlumber shows you where you are in this curve, right now.