My DD is 4.5 months and her sleeping is getting worse. She has been getting in the habit of waking every 45 mins to an hour during the night and she goes back to sleep as soon as she gets her dummy back. My first intinct is to take the dummy away and endure a few nights of crying and hopefully she will manae to get herself back to sleep. I'm worried thogh that she is too young and I'm being cruel. I don't know what to do for the best. Any advice would be gratefully received.