Any tips on getting a breast fed cosleeping baby to sleep longer stretches?

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Me too!

Ah man, I was hoping this would just naturally happen after like 5 or 6 months old.

Its luck of the draw with babies temperament unfortunately

As India says, a lot of it is luck. If they are taking well to solids you could try a snack in the evening before bed, like some yoghurt and banana, to keep them a bit more full.
My 17 month old wakes every 2 to 4 hours still, I've heard a lot of people say 20 months is a turning point for a lot of children.

Pretty normal but sometimes getting a second let down before unlatching can help. Definitely agree with 20 months being a turning point! Plus once they’re mobile you should be able to sleep with a boob out and let them latch themselves without much or any help, I kinda trained my daughter by helping less each time and now I know she wakes up all through the night because I set up a camera once but I sleep right through it because she helps herself

My little one is 13 months old and the longest stretch he has is 5/6 hours, this is on a good night. But the slightest thing can make it go back over on itself unfortunately. He’s been teething over the past few days and we have been having wakes every hour😭x

Regulate yourself mama. A calm baby is a well rested baby

17 months and still waking every 2.5 hours on average. Co sleeping and BF.
My first only stopped waking when I stopped BF so I’m now expecting the same thing.
Sorry no advice just solidarity. And I bet your baby feels safe and loved which I try and remind myself multiple times a night 🤣

Weaning. That was what did it for us.

I weaned my first (just at night initially) at 1.5

I wish I had better tips. 😪 I think a lot of it is also just temperament.