How does baby sleeping longer and eating less often affect my milk supply? As time goes on, baby will conceivably start taking longer stretches without eating. I would like to nurse as long as possible, even if it is just twice a day (morning and evening) and using previously pumped milk during the day, and later on solids. My baby is still very young, but already going a 6 hour stretch at night without eating. I have had a great milk supply so far, but I am not sure how these sort of things will affect it.