My ds is 7 weeks old and these past couple of weeks on a night time he's gone 5/6 hours before feeding, falling asleep and waking again 3.5/4 hours later for his next feed. But recently he has been waking after 6 hours, feeding and then waking again after an hour of being put down, and he is very difficult to settle. He has colic but he is bottle fed on comfort milk and sometimes we give a drop of Infacol before feeds too. I'm not sure whats happened for him to have started doing this - I've just picked him up again and he's asleep on my shoulder now! Ideas please?! Thanks!