Re: Milk storage capacity
As long as you are pumping a sufficient amount, and the baby seems satisfied when nursing, you can safely let her sleep through without needing to pump. Your supply will not dry up as long as you take the trouble to maintain it- which means that if you see a dip, you nurse more and/or pump more, and your supply will respond and increase. The NICU nurse gave you good advice- but it's advice for the mom of a very young baby who may not be nursing well, and for someone who needs to establish a good supply. It's not accurate for someone with a good supply, whose baby is nursing well.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"