Sleep Calculator
Find Your Perfect Bedtime & Wake Time
Calculate your optimal sleep schedule based on 90-minute sleep cycles for better rest and energy.Used by 500K+ users • Works for all ages and lifestyles
Sleep Calculator
Find your optimal sleep schedule based on natural sleep cycles
Sleep Mode
Sleep Details
Ready to Optimize Your Sleep?
Choose your calculation mode and enter your sleep preferences to get personalized recommendations
How to Use the Sleep Calculator
Optimize your sleep schedule in 3 simple steps
1. Choose Mode
Select your calculation mode: bedtime, wake-up time, duration analysis, or age-based requirements
2. Enter Times
Input your sleep times and fall-asleep duration for accurate calculations
3. Get Schedule
Receive your optimal sleep schedule with quality assessment and improvement tips
Understanding Sleep Cycles
Learn how sleep cycles work and why timing matters
90-Minute Cycles
Each sleep cycle lasts approximately 90 minutes, including light, deep, and REM sleep stages.
REM Sleep
Rapid Eye Movement sleep is crucial for memory consolidation and emotional processing.
Deep Sleep
Deep sleep is when physical recovery happens - muscle repair, immune system strengthening.
Wake Timing
Waking up at the end of a cycle prevents grogginess and improves morning alertness.
Sleep Optimization Tips
Evidence-based strategies to improve your sleep quality
Dark Environment
Use blackout curtains and eliminate light sources for better melatonin production
Cool Temperature
Maintain bedroom temperature between 60-67°F for optimal sleep quality
Digital Detox
Avoid screens 1-2 hours before bedtime to reduce blue light exposure
Relaxation Routine
Create a calming bedtime routine with meditation, reading, or gentle stretches
Recommended Sleep Products
High-quality products to improve your sleep environment and quality
Blackout Curtains
- Blocks 99% of light for better sleep
- Thermal insulation properties
Frequently Asked Questions
Common questions about sleep cycles and optimization
Ready to Optimize Your Sleep?
Use our calculator to find your perfect sleep schedule and wake up refreshed every day