DS2 aged 5 months just has his dummy to get to sleep. I then take it out once he is asleep. He used to wake maybe once a night looking for it and ( now studpidly I realise) I would put it back in and he would go back off to sleep. Recently though he has started waking 4 times a night looking for it which is driving us insane. Its not a growth spurt or food related. Is is bet to go cold turkey with this and just let him scream it out ? Any advice gratefully received.