snow hmm funny you should mention that...
I use tommee tippee bottles and yes up until last week I was using the first size teats. DS would have 7 oz/210ml milk 5 or 6 times a day occasionally leaving an oz or two but would have a bottle at 6:30/7pm, 1am and then 5/6 am overnight.
Last week I decided to try different sized teats because he was getting more distracted etc and when I was looking at them dp said not to bother with the next size up (medium flow) but to go for the fast flow as they said 6 months + so that's what I did.
Tbh it's been hit and miss - sometimes he's fine with them, sometimes he's grumpy with them (they sometimes squirt in his face), and sometimes he still gets distracted. But I've not noticed he's having more and I've not really stopped using the others - they're all in the steriliser together so I'm not consciously using one or the other half the time.
Now having said all that ds has started having less milk the past couple of days... He's not really eaten more solids in fact he's been a bit fussy with that too so it's probably coincidence but today I've struggled to get him to have more than 60ml except his first bottle this morning which he threw up. As I'm writing this I'm wondering if he had a bit of reflux or something. Anyway....
Can you give your ds more at each night feed to try to reduce the frequency? or does it not work like that with him? it doesn't with ds to be honest he'll only have what he wants. Is he on solids yet? I've noticed ds has less at night if he has a decent evening meal.
Does that help?