DS2 is nearly 16 months - he has been relatively good at putting himself off to sleep until Friday (pop him in grobag, read him a story or two, put him in his cot and he'll burble and drift off) but since Friday lunchtime he has been terrible at nap and bedtime - wailing inconsolably as soon as the door is shut, calms down if you go in and lie him down (and he's tired) but if you let go of him he'll start wailing again. Its taking us up to 20 minutes to get him to go to sleep. He is teething (but has been for months) so I dont think its that. Do you think it could be separation anxiety? Never had this with DS1 so any suggestions of what it might be - and how you got through this stage without losing your sanity - would be much appreciated.