A.
We swaddled until almost 7 months, and it was also difficult on our sitter(s). The main sitter didn't believe in it and wouldn't try it, yet she constantly complained that my daughter didn't nap. Our daughter started pulling her arms out around 6.5 months, so we started wrapping only her abdomen. By 7 months, she was getting out of that. She had to have the blanket in there with her, but she still slept. Your daughter will start telling you when she's ready to give it up. And if you wait until she's ready, she will adjust quickly to the new sleep arrangements. If you do it too early, she'll fight. Just watch her for signs that she's ready. (Escaping, struggling when you try to wrap her, etc)