Choose their age and when they woke up.
Choose an age, morning wake and nap rhythm to generate a practical example day.
Times are flexible start windows, not fixed appointments. The next part of the plan depends on when the previous nap actually ends.
Lulla estimates the next likely sleep opportunity using your baby’s age, the time they woke up and the day rhythm you choose. The result shows whether the next sleep is more likely to be a nap or bedtime, how long the wake window is, and a flexible suggested nap duration.
Wake windows are best treated as a starting point rather than a promise. Babies vary, and sleep can change with development, illness, feeding, stimulation and the previous night. Use the calculator alongside your baby’s own cues.
The Plan tab generates a complete example day with nap start windows, wake-window lengths, suggested nap durations and a bedtime range. Around transitions, you can switch between plausible rhythms instead of forcing one schedule.
Open the baby day plan generator or read the baby sleep schedule calculator guide.
There is no single ideal nap length for every baby or every nap. Lulla shows a flexible range based on age and the selected rhythm. A short late nap may serve a different purpose from a long midday nap.
Lulla provides general sleep-planning guidance, not medical advice. It does not diagnose sleep problems or replace advice from a qualified healthcare professional. Seek professional help if you are worried about your baby’s sleep, breathing, feeding, health or development.