i second to keep the BFing to sleep as it is a lot to drop all at once. Could you possibly start introducing other cues to sleep, such as a "cuddly"( stroke her face with it while she is drifting off) or music to help that association and then you can slowly take away the wrap or replace it with a light cloth tucked in tight. I also agree that this is a time for lots of milestones etc which seems to make them unsettled (my dd same age!). Also, i know it is still hot but could you put her down in just a nappy and a light muslin wrap? I also found that taking away the wrap for a day sleep seemed to help her learn gradually to do without it at night
I hope her sleep improves soon.