DS has never been a fantastic sleeper, but never as bad as this. I am following the GF timings (but not the other stuff) so he has been in a consistent routine from birth. Since about August we have been co-sleeping as he was still waking up several times a night which was manageable with co-sleeping. Now all of a sudden he is waking every half hour or so from being put in his cot at 7, and then after much rocking etc he might sleep til the early hours before waking every 5 minutes. Last night it was from 1 am til 4 am!!! DH said to put him in his cot and leave him. I hadn't wanted to start CC just like that but did it and lay on the floor next to him, and he did drop off each time but awoke anytime between 3 and 10 minutes later for the whole 3 hours! This is casing a very unhappy little boy, and a lot of stress to me and DH and also is very difficult for DD aged 5 to get up for school. Any help or suggestions gratefully received.