Is comfort/ controlled crying safe for baby from 6 months?
Would cc be ineffective if you co-sleep?
Also what would you do / or have done to move baby who is 6 months from your bed and who you are thinking to cc?
If you are looking to move from co-sleeping to not then I suggest looking at Elizabeth Pantley's No Cry Sleep Solution. She gives gentle ways to wean your baby off sleep associations you don't want to ones you do.
Controlled Crying/Comforting (CC)isn't recommended for babies younger than 6 months of age...though personally it's not something we'd ever do again and there are differing views on whether it is 'safe' or not. Safe from the perspective of the psychological impacts not necessarily physical safety...though if you leave a child to cry until they vomit for example I suppose you could risk them choking on, or aspirating the vomit into their lungs, making them unwell.
With DS2 we didn't actually do anything. He decided at 7 months of age that he didn't want to be in our bed anymore...though it took us a month to work out that's what all the fidgeting meant when we tried to bring him into our bed. laugh
I suppose it depends on why you want a change, what time frame you are looking to achieve it in and how much crying you are willing to put up with. Personally I found CC to be torturous, not only for me but for DS1 as well, which is why we were determined not to use it again. It didn't 'work' for us in the end we found something that did. There are other ways to get babies to settle on their own without leaving them to cry; if you want more info I am happy to answer questions as to what we did or you could read the No Cry Sleep Solution as above. I borrowed my copy from the local library so that might be a first point of call if you don't want to spend the money to own a copy.