I'm having exactly the same worries about going on 1 week holiday in September with my in-laws and bro-in-law and his wife and 2 kids (nearly 4 & 18 months)!
Bro & sister in law are VERY opiniated (even mocked me on Friday for taking 5 month old DD to the library and getting her a book... Think I'm indulging her and just laughed and said their 18 month old had barely seen a book)
I've already decided not to mention the co-sleeping as there will be cot in our room anyway so they don't need to know where she's actually sleeping. I've just talked DH out of moving her from our bed and not using CIO methods so I'm prepped if they say anything!
DH already said he'd say something if they keep commenting on the nappies so hope he keeps to that.
Sis-in-law confidently told me she'd show me how to pre-steralise and measure out all formula needed for the week so just add hot water to the bottle as required even though I'm breast feeding!! I'm just seeing it as a positive cos DD still won't take a bottle even with expressed breast milk (tried numerous times) so I'm already planning to tell them all to go out for the night and enjoy themselves and I'll hold the fort so they can have a grown up night altogether
I know they want grandparents to look after kids sometimes but this will be first time DD met DH parents as they're coming over from NZ... Do you think you could maybe suggest similar thing with your in-laws? Will your LO take a bottle if she wakes up (and if she will do they actually know that?
)
I'll keep my fingers crossed for you... I hate the thought of the potential confrontations and sarcastic remarks (I certainly know I'm going to get them and sounds like you might too
) but you've got to just stick to your guns
... Good luck, you'll be fine cos sounds like you're doing a fab job