Newborns sleep a lot – typically up to 16 to 17 hours a day. But most babies don't stay asleep for more than two to four hours at a time, day or night, during the first few weeks of life.
The result? Lots of sleep for your baby and a very irregular – and tiring – schedule for you. As a new parent, you'll probably be up several times during the night to change, feed, and comfort him/her.