vegansrock
This is just too much. 5 days in a row. I’d say yes to one day, then they’ll have to take a couple of days off work each or pay someone. The in laws chose the right week to go away! Tell them now so they’ve got a couple of weeks to sort it out.
Trachers cannot just each take a couple of days off, you know. Term starts for them a week before the children come back, and you have simply got to be at school that week.
That said, they have known since the school holiday started that the last week the children were not at school would be a problem.
They have also known far longer than that, that you and your husband have your own poor health to contend with.
Phone them up and say that your back is so bad that you frankly cannot either manage the journey, nor a week in their house looking after the children, much as you love them all, and that whatever your husband suffers from is giving him heck too.
The last week of the school holiday is not the right time to get a puppy, and of course she will not sleep all the time - you with your bad back will be mopping up puddles, non-stop.
Unfortunately, they will be offended, but quite honestly they have a nerve. And next school holiday, you and DH are away from home too (whether you are or not) the other set of grandparents assuredly have the right idea.