My DS is almost 18 weeks old and used to sleep well, only waking at 12 and 4 for feeds and going straight back to sleep. For the last 4 weeks though, he wakes as soon as I put him in his moses basket and only stops if I pick him up. After about 4 attempts and up to an hour, he'll stay asleep and then wake again in about an hour, then it all starts again. Last night was quite a good night and I only had 3 and a half hours sleep. I can't put him down if he's not asleep as he cries or goes wide awake. Patting him when he's in his basket doesn't stop him crying so I have to pick him up. He still only feeds at 12 and 4 so he's not hungry. I don't know what to do, I spend at least an hour a night in tears and tonight I shouted at him, my little gorgeous baby, I'm such a bitch :(