DS2 (6 weeks) gave the the much needed gift of sleep last night, going from 11-3.30 and 4.20 until now (DS1 is awake now and no one but the baby can sleep through that cacophony). I didn't change DS2 when he woke to feed last night - should I have done? He fired out a few before bed so didn't poo overnight (otherwise I would have changed him obvs) but I labour under the impression that you're meant to change small babies every few hours. Is that right?