WEANING YOUR BABY WON'T MAKE HIM SLEEP BETTER
I have had children with three very different personalities and breastfeeding habits. I've been able to transition all three of them to sleeping in their own crib long before they stopped breastfeeding.
I think many are looking for an easy way to get their baby to stop cosleeping and/or sleep better. The sheet fact is, there is no easy way, regardless of how you feed them. It will take a little time and effort on your part, and probably a few weeks, but you just transition them by transitioning them, and sticking to it. It has nothing to do with nursing.