Generally, newborns sleep a total of about 8 to 9 hours in the daytime and a total of about 8 hours at night. But because they have a small stomach, they must wake every few hours to eat. Most babies don't start sleeping through the night (6 to 8 hours) until at least 3 months of age.

How can I make my baby sleep longer at night?

Here's how to get baby to sleep through the night:

1. Establish a bedtime routine.
2. Teach your baby to self-soothe, which means trying your best to soothe them less.
3. Start weaning the night feedings.
4. Follow a schedule.
5. Keep a calming ambiance.
6. Stick to an appropriate bedtime.
7. Be patient.