1YO waking at night for milk

[KP12]

Hi,
So just over a week ago we made the switch to cow's milk with my newly turned one year old. I gradually introduced it as he wouldn't accept it at first. But as soon as it was more cow's milk than formula he started waking hungry for a bottle in the middle of the night.. he's fully on cow's milk now but I can't cope with the fact his sleeping has gotten worse. He's always had a bottle around 5am and gone back to sleep until around 8am but now he's waking around 1/2am for one also and drinking it which tells me he actually does want it.. he's a big boy for his age and I have tried filling him up before bed last night he had Weetabix and a piece of toast in the lead up to bed and still woke 🤯

What do I do? Contemplating the switch back to formula just for his bedtime bottle.. but reluctant as I know this isn't great either. Anyone been in this situation?

Have you started to add in a couple of snacks a day yet?

What food does he eat in the day?

Ds is 1. Since around 12 months he dropped down to just a breastfeed first thing, and now at 20 months he has only had cup of regular cows milk mid afternoon the last few months ( about 100ml/4oz of milk in open cup)

I don’t think they really need milk overnight after 12 months, and it’s isn’t great for teeth to have milk after teeth cleaned.

Yes he has snacks during the day and three meals but his eating is hit and miss as he's always been baby led weaned because he would never take to purees with lumps in so switched straight to self feeding. But this waking has only occured since I switched from formula I didn't think it would have that much of an impact.

I know all about the teeth and know they shouldn't have bottles etc it's not ideal that's why I'm on here asking for advice/help clearly. He only has it in a bottle at night he drinks a small cup of milk in the day with plain water inbetween.

It maybe a coincidence. My youngest is much older and she usually still has milk during the night.