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Baby & Parenting Calculators

Baby Sleep Calculator

Recommended total sleep, naps and wake windows for babies and toddlers by age.

Enter values

Results update as you type.

Result

Total sleep per day

12–15 h

Naps per day
2–3
Wake window between sleeps
2–3 h
Typical night sleep
10–12 h

Educational estimate only — not medical advice. Talk to a healthcare professional about your individual situation.

About the Baby Sleep Calculator

Recommended total sleep, naps and wake windows for babies and toddlers by age.

Also known as: baby sleep schedule, how much sleep does my baby need, wake windows.

How to use this calculator

  1. Enter baby’s age.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

Based on published sleep-duration guidelines by age

Worked example

Using the values pre-filled in the calculator above:

  • Baby’s age = 6 months

the calculator returns:

  • Total sleep per day: 12–15 h
  • Naps per day: 2–3
  • Wake window between sleeps: 2–3 h
  • Typical night sleep: 10–12 h