My 9 week old used to be able to settle himself to sleep easily, then about 2 weeks ago he struggled to settle himself at nap times, so we started to cuddle him to sleep- at the same time were were also trying the core night method to encourage him to sleep through which advised to cuddle instead of feeding during the night. gradually this has spread to cuddling him to sleep at night and when he wakes during the night. He now can't settle himself without being cuddled to sleep. I now don't know how to break this cycle. I feel like it's all my fault and that I should have done something else when his settling started to go wrong. he is now waking 3-4 times during the night not to be fed but cuddled back to sleep. Will this sort itself out? or anyone any ideas on what I should do?