No cry sleep solution can be helpful.
Maybe go to the library and grab a collection of baby sleep books and see if there's anything in there that might be helpful.
For dealing with family members. I tend to go the smile, nod and "oh okay, thanks". And ignore.
With your husband talk to him about why you don't agree with CC. If you don't think it's right fir your child, advocate for your baby and if you have to just tell your husband it's not happening.
Though if you find a no-cry settling solution try to involve him in a approach you are comfortable with.
Good luck <3
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