Did your breastfed baby sleep longer when given formula?

[username4959292]

DS is currently ebf he is only 6 weeks so don't expect him to sleep through at all yet. But after another comment from a another mum about how her 3 month old ff DD now sleeps through the night it left me wondering whether I should just give him one bottle last thing at night.
My DD was ebf and never slept through the night until she stopped bf at 2. She never took a bottle so formula was never an option.
My worry is though that it could affect my supply or cause mastitis. Also that it might have no affect on his sleep. Has anyone else given a bottle of formula just for the last feed before bed? Did they sleep abit longer? Don't expect/want him to sleep through but would sometimes appreciate a stretch longer than two hours. TIA

2 BF babies. One still having a night feed at 18 months, one sleeping through at 5 months, and weaned entirely (himself) at 8 months.

I don't think it's the feeding method, but more the individual kids.

If it helps, they both are very easy to put to bed now, and sleep through from bed till morning every night (if they come in, it means they're sickening for something)

My first was ff and didn't sleep through till he was 18 months.

My bf baby started sleeping through from 3 months (8.30pm - 6am).

when we moved to formula at 6 months I had nights of hell. It corresponded with teething and seperation anxiety.

Food is not the solution for sleep unless you don't bf enough/not on demand for whatever reason