Sleep Calculator
Smart Sleep Calculator
Optimize your sleep with science-based calculations
Sleep Cycle Visualization
Each cycle = 90 minutes
Optimal Sleep Times
💤 Power Nap
10-20 minute optimal naps
✈️ Jet Lag
Recovery calculator
📊 Sleep Debt
Track & recover
🌙 Dark Mode
Eye-friendly display
💡 Smart Sleep Tips
☕ Avoid caffeine 6-8 hours before bedtime
📱 No screens 1 hour before sleep
🌡️ Keep bedroom cool (60-67°F / 15-19°C)
⏰ Maintain consistent sleep schedule
🌞 Get morning sunlight exposure
Improve your rest with our free Sleep Calculator.
Enter your wake-up or bedtime to calculate the best sleep cycles for optimal energy, productivity, and health.
Backed by circadian rhythm science,
this tool helps you wake up refreshed and avoid sleep debt — ideal for students, professionals, and wellness seekers.