Work out baby sleep schedule instantly with clear inputs, formula shown and shareable results.
Recommended 24 hour sleep is taken from the usual age bands, daytime naps are subtracted to leave the night requirement, and bedtime is the wake time counted back by that many hours. Bedtime is a consequence of nap length, not an independent choice: a long late nap mathematically pushes bedtime later if the total is to be met.
Night sleep
night sleep = recommended 24h sleep - daytime nap sleep
Bedtime
bedtime = wake time - night sleep, wrapped into a 24 hour clock
night sleep = recommended 24h sleep - daytime nap sleep. Recommended 24 hour sleep is taken from the usual age bands, daytime naps are subtracted to leave the night requirement, and bedtime is the wake time counted back by that many hours.
Bedtime is a consequence of nap length, not an independent choice: a long late nap mathematically pushes bedtime later if the total is to be met.
Enter baby's age, daytime nap sleep, morning wake time (24h clock). The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.