Newborns just sleep any old time, on and off, all through the day and night. By age four months, your baby will probably be sleeping a 6-8 hour chunk at night, and by age 6 months, about 10-12 hours. But that’s not to say that they won’t wake up during that time! Most babies still wake up at least once a night even at age nine months. Some can get back to sleep by themselves, and some need you to help them fall back asleep. If all this night waking is not working for your family, then you may find some helpful resources on this page, so read on!