Optimal Nap Duration Calculator
Calculate the best nap length to avoid sleep inertia and achieve your energy goals.
Inputs
hrs
hrs
Results
Recommended Nap Length
10 min
Nap TypePower nap — Stay in light sleep (Stage 1-2)
In Ideal Window?Yes — Optimal nap time
Sleep Inertia RiskLow — Staying in light sleep
Night Sleep ImpactMinimal impact
Latest Recommended Nap3:00 PM
How to Use This Calculator
- Enter the time you plan to start your nap using the hour and minute fields.
- Set your typical nighttime bedtime to avoid affecting sleep pressure.
- Select your nap goal: alertness boost, memory consolidation, or full recovery.
- Review the Recommended Nap Duration and the Optimal Wake Time.
- Check the Sleep Inertia Risk output since naps over 30 minutes may cause grogginess.
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