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Full app launch — professional UI, high-resolution icon, optimized splash screen, and complete feature set.
Circadian shift sleep calculator, nap schedule, caffeine cutoff and light
Rotating shifts, night duties, and irregular rosters make consistent sleep feel impossible. Shift Sleep: Night Shift Plan is a chronobiology-backed sleep assistant built specifically for nurses, emergency responders, doctors, pilots, and industrial shift workers. CHRONO-PLAN: TONIGHT'S RESTORATIVE BLUEPRINT (100% AD-FREE) - Every shift demands a different physiological sleep strategy. View your clear daily timeline: - Strict Caffeine Cut-Off: Exact pre-dawn hour to halt coffee, energy drinks, and caffeine so adenosine receptors clear in time for day sleep - Dark Therapy Commute: Precise departure time to put on polarized dark sunglasses to block morning retinal light and stop melatonin suppression - Core Daytime Sleep Window: Optimal 7.5-hour restorative sleep block in a cold (65-68°F), pitch-black environment - Prophylactic Anchor Naps: 60 to 90-minute pre-duty nap intervals to prevent the dreaded 4:00 AM circadian trough crash - Zero disruptive popups or intrusive ads on your plan or wind-down screen DYNAMIC ROSTER & ROTATING SCHEDULES - Supports all shift variations: - 12-Hour Night Shifts (19:00 - 07:00) - Day Shifts (07:00 - 19:00) - Evening & Swing Shifts (15:00 - 23:00) - Off & Recovery Transition Days - Quick presets for popular shift rotations (3-on-4-off, continental, and fixed night shifts) SLEEP DEBT & FATIGUE ASSESSMENT - Track actual sleep hours, sleep quality ratings, and wake grogginess. - Real-time cumulative sleep debt calculator tells you exactly how many hours of sleep deficit you are carrying. - Adherence tracking for caffeine cut-off and dark therapy eyewear. OCCUPATIONAL FATIGUE RISK AUDIT DOSSIER (PDF) - Generate a comprehensive Shift Worker Circadian Sleep & Fatigue Risk Report (PDF): - Full roster table and shift pattern history - Sleep duration vs. 7.5-hour biological baseline - Sleep debt trajectory and average restoration score - Export for occupational health reviews, employee wellness audits, or physician sleep consultations 100% PRIVATE & OFFLINE-FIRST - All shift duties, sleep logs, and personal health data remain strictly on your local device. - Works offline in hospital basements, flight decks, and secure industrial facilities. NO RECURRING SUBSCRIPTIONS - Free tier includes 3 rotation presets and 30 days of full sleep logging. - One-time Pro Lifetime purchase for \$5.99 unlocks unlimited presets, infinite history, and unbranded PDF reports.