Feeding during the night

I need your input moms!!! I've received so many mixed info about feeding newborns at night. The nurses told me to feed baby every 3 hours or so and that I should wake baby up to feed even during the night. Others have said let the baby sleep as long as possible during the night. Only feed if the baby wakes up. So that means if my newborn sleeps for 6 hours straight then let her sleep and feed her when she wakes up. Does that sound about right? I'm a FTM and am worried about night feedings. What do you Moms do for feeding your newborns/infants?