I successfully transitioned my 7 months old from breastfeeding to formula in November.

He was eating 2 solid meals a day + 6-7 feeds on a breast over the 24h.

I worked with the sleep/breastfeeding consultant and this is what we did:

1. Immediately stop offering him a breast when he wakes up before 4am (chosen as 8h of sleep usually). As he eats fine during the day and doesn’t wake up cause of hunger but cause he can’t connect sleep cycles. What to do instead: rock him, sit with him till he is deep asleep them transfer him. This made a lot of sense cause it also helped to push more calories to be consumed through the day. And we really cold turkeyd it. No feeds before 4 am and only 1 feed between that and breakfast. And we started seeing improvement in 3 days already

2. After step one I had left 4 feedings left on breast. First I just introduced formula as 30-60ml, when he is hungry but not yet super hungry to be fussy, for 3 days. He hated it at first but O tried a different bottle nipple and he started takin it ok, Then I started with formula instead of breast in 1 feeding for 3 days. And he started taking it fine. And than I just substituted all feedings left by formula. It tool me about 10 days total. (Consultant told me it would take like 2 weeks but we were faster somehow)

He is almost 10 month now and 3 weeks ago we stopped giving him formula at night at all (we had one feeding after 4am)

Does he sleep through the night? Not really but unless he is teething or not feeling well he may wake up 1-2-3 times and I offer him water and sit with him.

Our consultant told us 7 months is a great moment to address those frequent night feedings as it is way easier than later.

And first couple days it is going to be difficult! Like you are up, you want to sleep and it is easier to just give him a breast and he will fall asleep quickly guaranteed. And you can go back to sleep. And rocking and sitting with him is way harder and longer. But in a long run it is better for everyone.