Sleep Cycle Calculator - Sleep Phases
Calculate optimal bedtime or wake time based on 90-minute sleep cycles. Includes sleep stage timing (light, deep, REM), sleep debt tracking, and circadian rhythm recommendations. Health calculator for better sleep quality and daytime alertness.
Sleep Cycle (90 minutes)
Sleep Time = Wake - (n × 90 min)Keterangan:
- nNumber of cycles (5-6 cycles ideal)
- Cycle1 cycle = 90 minutes
How to Use the KalkuLab Sleep Cycle Calculator
- 1
Enter Wake-Up Time
Enter your desired wake-up time.
- 2
Select Number of Cycles
Choose the number of sleep cycles (5-6 recommended for adults).
- 3
Calculate
Get your optimal bedtime based on 90-minute sleep cycles.
Contoh Perhitungan
Wake Up at 6 AM
Soal:
Wake at 6:00 AM with 6 cycles. What time should you go to bed?
Penyelesaian:
- 1.Total sleep = 6 × 90 = 540 minutes = 9 hours
- 2.6:00 AM - 9 hours = 9:00 PM
Hasil:Bedtime at 9:00 PM
Going to bed at 9 PM gives you 6 complete sleep cycles.
Pertanyaan yang Sering Diajukan (FAQ)
How many sleep cycles are ideal?
5-6 cycles (7.5-9 hours) is recommended for most adults.
What is the REM phase?
REM is the deepest sleep phase for memory consolidation, occurring at the end of each sleep cycle.