Enter your baby's age in months and wake-up time to get a personalized sleep schedule. The Baby Sleep Calculator shows recommended total sleep hours, number of naps, nap duration, bedtime, and suggested nap times based on age-appropriate wake windows — so you can build a routine that works for your little one.
Total Sleep Needed (24h)
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Recommended Night Sleep
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Number of Naps
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Wake Window Between Naps
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Suggested Bedtime
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Total Daytime Nap Sleep
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Newborns typically need 14–17 hours of sleep per 24 hours. Sleep is spread across many short periods throughout the day and night, usually 2–4 hours at a time. There is no established day/night rhythm yet at this stage.
The calculator uses your baby's age in months to determine age-appropriate sleep totals, number of naps, and wake windows based on guidelines from pediatric sleep experts. Enter your baby's wake-up time and average nap length, and the tool builds a suggested daily schedule around those inputs.
A wake window is the period of awake time a baby can comfortably handle between sleep periods before becoming overtired. Wake windows grow longer as babies age — for example, a 2-month-old may only manage 45–60 minutes awake, while a 12-month-old can handle 3–4 hours. Respecting wake windows helps prevent overtiredness and improves sleep quality.
Sleep recommendations are averages, and every baby is different. Some healthy babies sleep slightly more or less than the suggested range. If your baby seems well-rested, is growing normally, and is meeting developmental milestones, minor deviations are usually not a concern. Consult your pediatrician if you have specific worries.
Most babies drop from 3 naps to 2 naps between 6 and 8 months of age. Signs of readiness include consistently fighting the third nap, taking longer to fall asleep, or waking early in the morning. This transition usually happens naturally over a few weeks.
Most children stop napping between ages 3 and 5 years. Before age 2, naps are still developmentally important. Between 12 and 18 months, most toddlers consolidate to one nap per day. By age 2–3, some children begin skipping naps, though quiet rest time is still beneficial.
Research suggests that an early bedtime — typically between 6:30 PM and 8:00 PM — is best for infants and toddlers. Earlier bedtimes align with natural melatonin release and help prevent overtiredness, which can paradoxically make it harder for babies to fall asleep. The calculator estimates bedtime based on wake-up time and total night sleep needed.
Consistent routines are the most effective tool — a predictable sequence of events (bath, feeding, story, sleep) signals to your baby that sleep is coming. Keep the sleep environment dark and cool, use white noise if helpful, and try to put baby down drowsy but awake to help them learn to self-settle.