Currently trying what I think is the latter with DS, 16 weeks, and feel the worse mummy in the world. I've never been able to leave him cry before but has reached the point where he is exhausted as he has given up napping during the day and fights sleep all evening. I first tried to put him to bed at 8.15 this evening after bath, cuddles etc. He's still crying now although I've been in to pick up and comfort several times. He stopped crying each time and seemed to fall asleep but wakes the minute I put him down. On the verge of caving in - should I stick with it or give in?