i rocked my twins to sleep until they were 10 months then a friend of mine with twins told me about controlled crying and told me to try it. It broke my heart they cried and cried night after night it got better each night but it tokk 3 weeks to completely work with no crying. I recommened the same bed routine it worked wonders for me. Bath, feed, bedtime story, place in the cot say goodnight, i love you, mummys just outside then id do in after 5 mins and repeat the same thing id leave then id go back in after 6 mins and reapeat what id said again. Each time you go in stretchthe time out by one minute so first go in after 5 mins leave then go in again after 6 mins then after 7 mins and so on. hope you have more luck. Keep in mind my twins did still have their dummy as they refused to let it go.