When she stops feeding does she pull off to look around her, or does she just refuse to feed any more? Sometimes babies of this age are so easily distracted that the hard work of feeding is too much when they just want to play, wheras a bottle is much faster and easier to drink from.

I would suggest trying to keeps feeds quiet and undisturbed so she may stay on for longer. Turn the telly off and maybe quietly read her a story so she relaxes and enjoys the feed a bit more. If she does come off then let her and try again in a few minutes. She may just need a break but nor be finished, iykwim.

If that doesn't work then how do you feel about always expressing and giving a bottle of EBM at bedtime? If it has worked a few times it may be the answer you need for some more sleep.

T
xx