Big hugs to you Oliver - I know you've beem having a rough time with DD2 and sleep .

I've never tried formula either, but I've heard other mums on here say that formula won't necessarily make babies sleep longer. One mum I know, all of her kids have been formula fed, and none of them are great sleepers (or at least they weren't when they were younger).

I hope you get a good night's sleep soon!