Does she have a comforter at all? I had real issues getting baby out of swaddle as he def slept so much better with arms contained but now we're out of it fully as I wanted him to be able to use his hands to self settle. He has a soft toy bunny/blanket which he loves, constantly touching the ears with his hands and normally sleeps with the blanket bit over his face. (I've got a breathing alarm to put my mind at rest!) Maybe something like this might help her resettle on her own?