Use this free baby sleep schedule calculator to get a personalized nap schedule and bedtime for your baby based on their exact age — no guesswork, no conflicting advice, just a clear answer in seconds.
This baby sleep schedule calculator uses wake windows and total sleep targets from the American Academy of Pediatrics (AAP) to generate a schedule tailored to your baby’s developmental stage. Enter your baby’s age and wake-up time and you’ll instantly see nap times, wake windows, and the ideal bedtime.
How to Use This Baby Sleep Schedule Calculator
It takes under 30 seconds. Here’s what you’ll need:
- Your baby’s age — in weeks for newborns, or months for older babies and toddlers
- Wake-up time — what time your baby typically wakes up in the morning
The baby sleep schedule calculator will output your baby’s recommended wake windows, nap start times, nap durations, and ideal bedtime — all in one clear schedule you can follow today.
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Baby sleep schedule calculator
Enter your baby's age and wake time to get a personalized daily schedule.
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Baby Sleep Schedule by Age — What to Expect
Baby sleep needs change dramatically in the first two years. The baby sleep schedule calculator above automatically adjusts for each stage, but here’s a quick overview of what’s normal at each age:
| Age | Total Sleep | Naps | Wake Window |
|---|---|---|---|
| Newborn (0–3 mo) | 14–17 hrs | 4–5 naps | 45–60 min |
| Infant (4–5 mo) | 14–16 hrs | 3–4 naps | 1.5–2 hrs |
| Infant (6–8 mo) | 13–15 hrs | 2–3 naps | 2–2.5 hrs |
| Infant (9–11 mo) | 12–15 hrs | 2 naps | 2.5–3 hrs |
| Toddler (12–18 mo) | 12–14 hrs | 1–2 naps | 3–4 hrs |
| Toddler (18 mo–2 yr) | 11–14 hrs | 1 nap | 4–6 hrs |
What Are Wake Windows and Why Do They Matter?
A wake window is the amount of time your baby can comfortably stay awake between sleeps before becoming overtired. Getting wake windows right is the single most important factor in whether your baby falls asleep easily and stays asleep — more so than any sleep training method.
When babies are put down too early they aren’t tired enough to fall asleep. When they are kept up too long they become overtired and the stress hormone cortisol kicks in — making it harder to fall asleep and stay asleep. The baby sleep schedule calculator above uses age-appropriate wake windows so your timing is always right.
Frequently Asked Questions
How do I know if my baby’s sleep schedule is right?
Signs your schedule is working: your baby falls asleep within 15–20 minutes at nap time and bedtime, wakes up happy, and is generally content during wake windows. Use the baby sleep schedule calculator above as a starting point and adjust by 15-minute increments based on your baby’s cues.
When do babies drop from 3 naps to 2?
Most babies transition from 3 naps to 2 between 6–8 months. Signs they’re ready: the third nap becomes a fight, they start waking earlier in the morning, or night sleep becomes disrupted. The transition typically takes 1–2 weeks to settle.
Why is my baby fighting naps?
The most common reasons are wake windows that are too short (not tired enough), wake windows that are too long (overtired), or an inconsistent routine. Try adjusting the nap start time by 15–30 minutes and see if that helps before making bigger changes.
More free tools and guides from Real Life Mom Guides:
- Toddler Bedtime Calculator — find the ideal bedtime for your child’s age
- Baby First Year Cost Calculator — estimate your baby’s first year expenses
- All Free Parenting Tools — our full calculator library
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