The 4-month sleep regression is common as sleep cycles mature.
About 1.75 to 2.25 hours awake between sleeps.
3 to 4 naps a day.
Wake around 7am, alternate roughly 1.75 to 2.25 hours awake with naps, aim for 12 to 16 hours total sleep, bedtime near 7pm.
5 to 6 milk feeds.
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.