In the first few weeks, a newborn should not go longer than about 4 hours without feeding, even overnight, until they are back to their birth weight and your pediatrician says longer stretches are fine. Newborns have tiny stomachs and need to eat often, usually 8 to 12 times in 24 hours, or roughly every 2 to 3 hours.
It is completely normal to feel torn between letting a peaceful sleeper rest and making sure they eat enough. Early on, frequent feeding wins, because it protects weight gain, milk supply, and against problems like dehydration and jaundice.
This guide explains how often newborns need to feed, when you can stop waking them at night, and how longer stretches safely develop.
Key Takeaways
In the first 2 weeks, wake your newborn to feed at least every 2 to 3 hours by day and no longer than about 4 hours at night.
Newborns typically need 8 to 12 feedings in 24 hours because their stomachs are very small.
Frequent feeding protects weight gain and milk supply and helps prevent dehydration and jaundice.
Once your baby is back to birth weight and gaining well, and your pediatrician agrees, you can usually stop waking them and let night stretches lengthen.
Longer natural stretches often emerge over the first few months, but always place your baby on their back in a bare crib.
Table of Contents
How Often Newborns Need to Eat
A newborn’s stomach is tiny, so they fill and empty quickly and need to eat around the clock. Most newborns take 8 to 12 feedings per 24 hours, about every 2 to 3 hours counting from the start of one feeding to the start of the next. Breastfed babies often feed a little more frequently than formula fed babies, since breast milk digests quickly.
Rather than watching only the clock, watch your baby. Early hunger cues include stirring, rooting, bringing hands to the mouth, and lip smacking. Crying is a late hunger cue. Feeding at early cues makes for calmer, more efficient feeds and less swallowed air.
Why You Wake a Newborn at First
In the first weeks, many newborns are sleepy and will not reliably wake themselves to eat enough, so you wake them. The AAP guidance is to not let a newborn go longer than about 4 hours without feeding until they have regained their birth weight, which most babies do by around 10 to 14 days.
There is an important safety reason. Too little feeding can lead to dehydration and can worsen newborn jaundice: sleepiness leads to poor intake, which reduces stooling, which raises bilirubin, which increases sleepiness. Regular feeding breaks that cycle. This is why the early weeks are not the time to chase long sleep stretches.
When You Can Stop Waking Your Baby
Once your baby is back to birth weight and gaining well, and your pediatrician confirms it is fine, you can generally stop setting alarms and let your baby wake on their own at night. At that point, if a healthy, thriving baby sleeps a longer stretch, you can let them. Always confirm this milestone with your pediatrician first, since babies with slow weight gain or other concerns may need to keep feeding on a schedule for longer.
How Longer Stretches Develop
Sleep consolidates gradually. Over the first few months, many babies start to string together a longer stretch at night, often 4 to 6 hours, and some go longer as they get older and take in more during the day. This is driven by maturing sleep and a growing stomach, and it varies widely from baby to baby, so comparisons rarely help.
You can gently support night sleep by keeping nights calm, dark, and boring, with quiet feeds and minimal stimulation, while making daytime feeds and interaction bright and social. A predictable wind down helps too. Our newborn sleep routine guide walks through a gentle early rhythm.
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However long the stretches get, safe sleep does not change. Place your baby on their back for every sleep, on a firm, flat mattress with a fitted sheet only, in a bare crib or bassinet with no pillows, blankets, or toys, and room share without bed sharing. Call your pediatrician if your baby is hard to wake for feeds, has fewer than the expected wet or dirty diapers, seems very yellow, or is not gaining weight, since those signal that feeding needs attention.
In the first 2 weeks, no longer than about 4 hours at night, and you should feed at least every 2 to 3 hours during the day, until your baby is back to birth weight and your pediatrician okays longer stretches. Newborns typically need 8 to 12 feedings in 24 hours.
When can I stop waking my newborn to feed at night?
Once your baby has regained their birth weight and is gaining well, and your pediatrician agrees, you can usually stop waking them and let them wake on their own. Most babies reach birth weight by around 10 to 14 days, but confirm with your doctor.
Why do I have to wake a sleepy newborn to eat?
Because too little feeding can cause dehydration and worsen jaundice, and can slow weight gain and milk supply. Many newborns are too sleepy to reliably wake themselves, so waking them protects their health in the early weeks.
How long should a newborn sleep at night in one stretch?
Early on, stretches are short because babies need to eat every few hours. Over the first few months, many babies begin to sleep a longer stretch of around 4 to 6 hours, and some longer, as sleep matures and daytime intake grows.
What are early hunger cues in a newborn?
Stirring, rooting, turning the head, bringing hands to the mouth, and lip smacking are early cues. Crying is a late hunger cue. Feeding at early cues makes feeds calmer and more efficient and reduces swallowed air.
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Paruthi S, et al. Recommended Amount of Sleep for Pediatric Populations: A Consensus Statement of the American Academy of Sleep Medicine. Journal of Clinical Sleep Medicine, 2016. https://jcsm.aasm.org/doi/10.5664/jcsm.5866
