Baby sleep resources

Free tools, charts, and guides to help you understand your baby's sleep. Built on published research, available in 6 languages.

Sleep

Find the right time between naps for your baby's age.

Total sleep, night sleep, and nap hours by age.

Check if your baby is in a sleep regression.

Find the ideal bedtime for your baby's age.

When babies drop naps and how to handle each transition.

Does teething really disrupt sleep? What the research says.

How much and how often to feed your baby by age.

When and how to drop night feeds, based on the latest research.

Look up any food to see when to start it and how to prep it.

When and how to safely introduce the Top 9 allergens.

What most babies do at 2, 4, 6, 9, 12, 15, 18, and 24 months.

How much, how often, and tips that work for each stage.

Moro, rooting, palmar grasp, Babinski, and more, with when each fades.

WHO growth calculator for weight, height, and head circumference.

nappi uses the same data behind these tools to predict naps, track sleep, and keep the whole family in sync.