Complete Guide: Building an Age-Appropriate Baby Sleep Schedule
A sleep schedule calculator takes your baby's age and morning wake-up time and turns them into a full day of suggested nap times and bedtime, based on typical age-appropriate wake windows. This free tool removes the guesswork from planning naps around your baby's natural sleep rhythm.
💡 Quick Summary
As babies get older, they need fewer, longer naps and can stay awake for longer stretches between sleep periods (called wake windows). This calculator applies commonly cited age brackets to estimate nap timing and total naps per day.
Typical Wake Windows & Naps by Age
| Age | Wake Window | Typical Naps/Day |
|---|---|---|
| 0-2 months | 45-60 min | 4-5 |
| 2-3 months | 60-90 min | 4 |
| 4-5 months | 1.5-2 hrs | 3 |
| 6-8 months | 2-2.5 hrs | 3 |
| 9-12 months | 2.5-3.5 hrs | 2 |
| 13-17 months | 3-4 hrs | 1-2 (transitioning) |
| 18mo-3 years | 5-6 hrs | 1 |
Step-by-Step Instructions
- Enter your baby's age in months.
- Enter their usual morning wake-up time.
- Click ⚡ Build My Sleep Schedule.
- Review the suggested nap windows and bedtime generated for your baby's age.
- Use the 📋 Copy Summary button to save the schedule.
Every baby is different — treat these as a flexible starting point rather than a strict rule, and adjust based on your baby's individual sleepy cues and your pediatrician's advice.