Hey Star,
This was a massive issue for us, but we went cold turkey on the dummy and the wrap and did teaching to sleep when he was too mobile for wrapping but would not go off to sleep unwrapped. The wrapping became a huge problem for me getting up every few hours to re-wrap so I didnt want to introduce another sleep aid like abag. Since we havnt looked back, Beau has slept thru the night every night since and it's amazing! Plus he gets into super cute positions that I have to go and squiz at!
Lots of people have success with gro-bags so do what you feel comfortable with.
Good Luck and sleep vibes x