My baby has just turned 7 weeks. I used to set an alarm every 3 hours to feed and change baby but noticed he is now waking himself when hungry during the night. So I didn't for the first time yesterday and he slept for five hours before waking which I didn't expect him to do! Is it ok for him to go this long between feeds or should I go back to setting an alarm and waking him? And what about his nappy? Should that be changed more frequently if he sleeps 5/6 hour stretches or not? He doesn't seem to poo in the night anymore, or only very small amount and didn't seem bothered by his nappy being wet but I would usually change every 2 hours during the day.