Four-week-old baby: feeding and sleep expectations

At four weeks old, a baby’s feeding and sleep expectations may vary based on their individual needs and development. Here are some general guidelines for feeding and sleep for a four-week-old baby:


  • A four-week-old baby will typically feed every two to three hours, or about eight to 12 times per day.
  • The amount of milk a baby consumes will vary, but a four-week-old baby will typically consume about 2.5 to 3 ounces (75 to 90 milliliters) per feeding.
  • Breastmilk or formula is the main source of nutrition for a four-week-old baby.
  • It’s important to feed a baby on demand, rather than on a strict schedule. A baby’s hunger cues, such as rooting or sucking on their fist, can indicate when they are ready to feed.


  • A four-week-old baby will typically sleep for a total of 14 to 17 hours per day, with most of this sleep occurring at night.
  • Babies this age may sleep for longer stretches at night, but it’s still normal for them to wake up frequently to feed.
  • It’s important to establish a consistent bedtime routine, such as giving a bath, reading a book, and singing a lullaby, to help a baby wind down and sleep.
  • A four-week-old baby should sleep on their back on a firm, flat surface in a safe sleep environment, such as a crib or bassinet, to reduce the risk of Sudden Infant Death Syndrome (SIDS).

It’s important to note that these are just general guidelines, and that every baby is different. If you have any concerns about your baby’s feeding or sleep, it’s important to consult with a healthcare professional for personalized advice.