do they come/go etc? DS is 18 months now is teething and off his food a bit but was wondering if ther'es a growth spurt thrown in for good measure as well as he's back waking during the nights again - give him milk and a cuddle and it's back to sleep - althou granted it is warm and perhaps he's thirsty - wouldn't want him to be hungry thou - althou i'm sure he's not the amount he usually eats. (I try to feed him up a bit when he's in an eating mood)