1. What's day/night confusion in newborns? Why do they get it mixed up? Day-night confusion is when a newborn sleeps more during the day and seems ready to party at night. Their internal clock, or circadian rhythm, hasn't developed yet. In the womb, babies were rocked to sleep by movement during the day and woke when things were still at night. After birth, that rhythm can linger until their body starts to link light, sound, and activity with day, and quiet and darkness with night. Melatonin, the hormone that helps regulate sleep, also isn't steady yet, which makes this especially common in the early weeks. 2. When does this end? Every baby has their own pace when it comes to sorting out days and nights. Around 2-3 months, many babies start showing clearer patterns with more awake time during the day and longer stretches at night. Some reach that point earlier, others later. It's not a milestone that happens all at once. Think of it as a gradual shift as their internal clock develops and they learn what daytime and nighttime feel like. 3. How can parents help reset their baby's clock Natural light during the day and a calm environment at night help babies start to understand when it's time to be awake and when it's time to rest. During the day, open the blinds, talk, play, and feed in bright spaces. At night, dim the lights and keep things quiet and calm. These patterns don't guarantee longer sleep right away, but they teach them the difference between day and night. Consistency is what helps most. Even a short bedtime routine, like a feed, swaddle, and simple song, can start signaling to their body it's time for sleep. 4. Will day-night confusion affect my baby's development? No. Day-night confusion is a common and temporary phase. But it can be tough on parents who are up at all hours. The best approach is to keep routines calm and consistent while finding small ways to rest and recharge yourself when you can.