Night feeds are simply a part of early parenting. All babies need them in the early days and all babies outgrow them in time. 

If your baby is born with higher needs than most babies, for instance, if your baby is born prem, is ill or failing to thrive, you will be advised to wake your baby at night. In these circumstances, you may be told to wake your baby three hourly at night or to wake your baby at specific times.  This is the only circumstance when babies should be woken at night. 

Be sure to keep these night feeds very calm and subdued so that your little one settles back to sleep as soon as possible. As soon as she is on the track to gaining weight nicely, ask your health care provider when you can stop waking her.