My son is 11 days old. He sleeps alot, approx 3hrs straight until I wake him up to feed. He's getting enough because his diapers have been consistent (wet/dirty)and he is gaining weight. My question is this: Should I just let sleep until he wakes up to feed? And if so what do I about my breast which become engorged if he doesn't feed? Should I pump? At night it seems that if I don't wake him up to feed he may sleep about 4-5 hours. It seems that the demand from him and the supply from me hasn't quite matched up yet.