My DD is also addicted to her dummy and it was also reflux that was the reason we gave it to her. Initially I was worried about her needing it to sleep all the time, but then I decided that at least she was sleeping and self settling. It wasn't much after 6 months that she started finding her own dummy to replace at night (most of the time). To help we would (and still do) put several dummies in her bed when she sleeps. Once she is asleep I'll often check to make sure there are some dummies within reach. When she was about 18 months old we made dummies a sleep thing only and she happily hands them over when she wakes. I figure we are at an age now where we will just wait for her to understand something like a dummy fairy or Santa ect taking them one day. I honestly don't mind now that they are just used for sleep...