Hi Mjk, (I'm very tired so excuse my writing).
I was in the same boat with both my girls. (Now just turned 4 and nearly 2). They both slept in our bed and were fed to sleep, and on demand. I can't help you with the feeding to sleep issue, as I only stopped feeding mine to sleep when my breast milk dried up when I became pregnant again and they had no choice! This turned into cuddles to sleep, and I (or DP) still lie there with them to get them to sleep. (They share a room).
Anyway, I think what I was going to tell you was that when I found they were feeding a lot through the night, or what seemed more like "dummy mummy", I started wearing a breastfeeding singlet or top to bed. This made it a little bit harder for DD to access the boobies and then after a week or so, unless she really wanted a drink, she would mostly just have a little winge and go back to sleep.
Also, we finally bought a cot and set it up right against our bed with the side off. Then I would feed her to sleep in there so she got used to having her own space. If she awoke in the night for a feed she would just crawl on over and find what she was looking for, or I would just lean over to her in the cot. Sometimes she would be grizzling and half asleep in the cot, and a gentle pat would settle her down, where as if she was right next to me in our bed as she used to be she would probably have tried to get at those boobies for "dummy" purposes. Not that she didn't end up back in our bed many times, but at least we had that little bit of space if we wanted it!
Sorry if i rambled!
Best wishes and good luck.
PS. At about 12 months of age I thought Sierra would never sleep through the night, but she went from many night feeds to all of a sudden sleeping through Beats me.