Hello! He is just so cute. I love the avatar.
Does he actually use a bottle still? It was hard to break my son from that habit. He loved his bottle and milk. I had the same question regarding my son and the following was advice someone else told me which really worked.
I started out using a sippy cup with milk to break the bottle habit first. Then we started to fill the sippy cup with water not milk for bedtime. We made a rule that he can have some milk before bed but only water after his teeth was brushed. That wasn't easy to get through. He did have cry outs and it was stressful but after a week or two, he was better.
You are bringing me back to my earlier days with Nathan. It will get better, I promise.