My DS has had a great routine of sleeping from 9pm-6am from when he was 11 weeks. However for the last few weeks he has woken at least once a night and this week he has woken about 3-4 times per night - sometimes needing a BF sometimes just for comforting. He is 22 weeks now so I have tried baby rice in case he was getting too hungry but this seems to have made it worse. Any ideas of what may help - I haven't changed his bedtime routine at all. Should I be trying different food to try to fill him up a bit? Would appreciate any tips or suggestions