Hi, my boy is almost 2 weeks old (only). Usually i manage to latch him on for 20min on one breast and 10-15min for the other side before he totally falls asleep. He'll ask for milk every 2-3 hours. If he has a good feed (or when I'm lucky), he can tahan for almost 4 hours. Once a day (usually at night), I cupfeed him with fm to give my sore nipples a break!