Parenting tool

Baby wake window calculator

Enter your baby’s age and optional wake-up time to get a simple next-sleep range without clutter.

Age and rhythm

Enter age to calculate a wake window.

Wake window

The range will appear after calculation.

Age
Next sleep
Hint

A short rhythm note will appear here.

Why wake windows help

A wake window helps you notice when a baby is ready for sleep before overtiredness builds up. The calculator gives an age-based range and a clock estimate when wake-up time is provided.

How to use it

  1. Enter age in months or weeks.
  2. Add wake-up time as 1130 or 11:30 if needed.
  3. Use the wake range and next nap estimate as a soft guide.