Choose your baby's age for a wake-window range. Add the last wake-up time to estimate the next daytime nap.
A wake window means the time between waking up and falling asleep again. It includes feeding, playing and getting ready for sleep.
Choose the age in months for a general range. You can also enter the last wake-up time as HH:MM to see an estimated interval for the next daytime nap. Leave it blank to use age only.
Enter HH:MM to estimate the next daytime nap, or leave blank for the age range only.
This calculator uses a general age table. In the Baby Soma app, the sleep plan also uses the sleep records you enter. See how Baby Soma works
This is a starting point from Baby Soma's age table, not a rule for your baby. Watch how your baby is doing. Ask a pediatrician about health concerns. For a baby born 3 or more weeks early, use the corrected age (counted from the due date) until age 2.
The cards show a daytime wake-window range, a nap count and a separate range before night sleep. With a wake-up time, the calculator adds both ends of the daytime range to that time and labels any result after midnight as the next day.
These are reference values for an age group. The calculator does not use your baby's recent sleep records.
Use the estimated interval for a daytime nap, not to plan bedtime or a night waking. Without a wake-up time, count the age range from when your baby wakes up. Either result is a starting point, not a deadline to reach.
Your baby's day may look different. The result does not tell you whether a particular sleep was good or bad.
It is the time your baby is awake between sleeps, including feeds and play.
No. It is a reference from an age table, not a personal sleep plan. Take your baby's needs into account.
The table has a separate range for the time after the last nap and before night sleep. It may differ from the daytime range.
Yes. Select the youngest age in the calculator. The result remains a general guide, not a fixed routine.
No. The calculator does not assess health or diagnose sleep problems. Discuss health concerns with a pediatrician.
Choose your baby's age for a wake-window range. Add the last wake-up time to estimate the next daytime nap.
Open calculator →Enter your baby's age and morning wake-up time to see an estimated bedtime.
Open calculator →Enter your baby's age and morning wake-up time to see a day with naps and bedtime.
Open calculator →Save sleep times, follow your baby's day and explore what Premium includes.
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