Wake Up Time Calculator — Find Your Perfect Sleep Cycle

Wake Up Time Calculator

Calculate the best wake up time based on your sleep cycles. Understand sleep phases, sleep duration, and wake up feeling refreshed with optimal timing.

Step 1: Sleep Details

5 cycles

Understanding Sleep Cycles

Each sleep cycle lasts about 90 minutes and includes all sleep stages. Waking between cycles (at the end of a cycle) helps you feel more refreshed than waking during deep sleep.

Step 2: Personal Factors

Optimal Sleep Duration

Most adults need 7-9 hours of sleep per night, which equals 5-6 complete sleep cycles. The exact amount varies by age, genetics, and lifestyle factors.

Wake Up Time Results

Summary
Cycle Comparison
Sleep Analysis

Optimal Wake Up Time

6:00 AM
Total Sleep: 7.5 hours
Bedtime
10:30 PM
Sleep Cycles
5 cycles
Sleep Duration
7.5 hours
Sleep Quality
Good

Sleep Cycle Comparison

Sleep Cycles Total Hours Wake Up Time 1 Wake Up Time 2 Wake Up Time 3

Sleep Phase Analysis

Sleep Cycle Formula

Optimal Wake Time = Bedtime + (Sleep Cycles × 90 minutes) + Time to Fall Asleep

The optimal wake up time is calculated by adding complete sleep cycles (each 90 minutes) to your bedtime, plus your average time to fall asleep. Waking at the end of a cycle minimizes sleep inertia.

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