Swaddle Bag

KS

We currently use the tommee tippee swaddle bag with our 10 week old. We started using it with arms in when he was around 4 weeks old due to the startle reflex. Recently he has found his hands and started to suck them. We want to transition him to hands out but when we've tried it on the odd occasion he is unsettled and sucks his hands, which disturbs him.

Has anyone any suggestions on the best way to transition to arms out?