Fifteen-month-olds walk confidently and often hold onto a second nap a while longer.
About 3.5 to 5 hours awake between sleeps.
1 to 2 naps a day.
Wake around 7am, alternate roughly 3.5 to 5 hours awake with naps, aim for 11 to 14 hours total sleep, bedtime near 7pm.
2 to 3 milk feeds plus solid meals.
Every baby is different. These are typical ranges for healthy, full-term babies, not targets. The easiest way to know your baby's normal is to track a couple of weeks and look at the pattern.
Thungu is a baby-tracking bot, not medical advice. If you're worried about feeding, weight, sleep, or development, talk to your pediatrician.