17 month ds breastfeeds to sleep, but suddenly won’t nap for nanny

[Twokidsonecat]

Hello, first time posting here.
17 mo ds is having an issue with his naps since Christmas. Our nanny looks after him and our other ds aged 3.5 yrs plus her own ds aged 4. Our 17 month old is refusing to nap unless she stays in the bed with him which she can’t do as she has the other 2 to look after. Before Xmas she would lie with him until asleep and then sneak out, but now he is having none of this. 17 month old is otherwise settled by me at night, in our bed by being breastfed to sleep. It’s really taking its toll on our nanny. He sleeps for about 20 mins before waking and then hysterical crying and clingyness as he’s still tired. I think it’s getting too much for her, and she’s asked me to sleep train him which I really don’t want to do (had a bad experience with ds1). Any suggestions for a solution? Any childminders out there that have several children to look after and had this issue before?
Our older ds had a similar nap hiatus around this age but then just suddenly got the hang of it and then was a consistent 2 hour napper. I’m happy to wait and see but for obvious reasons the nanny isn’t. Many thanks for any suggestions

Sleep train, it’s unfair to expect her to deal with all this and he shouldn’t be feeding to sleep at 1 and a half anyway.

I agree, I think some sleep training is in order.

I did the gradual retreat with DD for naps. Would you be ok with your nanny doing this for naps?

Definitely sleep train, you're doing no one any favours.

17 month olds should be sleeping in their own room in a cot imo.

Sleep training doesn't need to be hard, have a solid routine, lots of cuddles and stories and leave them warm and snuggly in their own bed.

If he cries go in and reassure, lie him back down and maybe shush/pat for a while.

Repeat for as long as it takes, the aim being that each night will need less reassurances.

Can’t she take for a walk in a buggy?

Thats all our grandparents did, nursery use a pram in the baby room. They do learn to fall asleep using something other than boob - there’s no need to sleep train or give that up. She’s 2 now and doesn’t nap so it’s not forever!