13-month-old waking several times at night after sleeping through

[LovingGoose]

13 month old waking numerous times in night, used to sleep through

Probably ready for 1 nap

How many naps do they have? If it's two, I'd try to condense it to one after lunch.
I found with both of mine that they had their final sleep regression at around 13 months. Just in time for my return to work!

Mine did this.
he was already on one nap because he was really resisting the second nap.
but I found that when he went down to one his night time sleep got worse:
after a lot of reading and talking to chat gpt, I made his one na earlier, weirdly, which solved it,
so he was sleeping something like 11-1.30 and then going to bed at 7/7.30. I found that to sleep through he needed about 6 hours awake time after his nap,
chat GPT said that if they have too long in the morning before the first nap, they get over tired and the nap becomes more of a crash out than a restful nap,