When might the next nap be due?

The range is an age-based starting point for babies aged 1 to 12 months. It does not use your baby's history, health, nap quality, or behaviour, and it does not predict the exact time they will sleep. Start the wind-down earlier or later when feeding, illness, travel, a short nap, or your baby's cues change the day.

The Wake Wise app works its estimate out differently. It uses its own age guide and, once you have logged enough wake windows, your baby's recent ones, so its suggested time can differ from this range.

For the reasoning behind the ranges, read what wake windows are or open the 4-month-old wake-window guide.