Probably going to be told iabu here and very lucky to have offers of help.
I've got two young dc, one is a toddler, mil keeps offering to come to my house and watch the dc while I clean. I haven't never, ever asked.
It doesn't work for me because they are all just under my feet, the toddler follows me round the house and they are all just making a big mess anyway. They'll be all excited because granny is here getting every single toy out running around and it's complete chaos. Even when they were babies she'd say she'd watch the baby while I sleep. It just doesn't work for me, the baby would be crying getting upset and I could hear all this going on so could never have relaxed.
Plus the fact I'm very introvert anyway, so find it stressful having people in the house.
When my mum has the dc she takes them off, feeds them baths them and I collet them ready for bed - stress free.
I don't expect any help from anyone anyway but I can tell they think I'm ungrateful and can't understand why I don't jump at the offer.