There are a couple of options for you. You could leave one arm out so he can have a little bit of freedom. You could get a Houdini-proof swaddle (I used the Halo Swaddler for my little magician), or you could wean him off it entirely. It's totally up to you. I think I ditched the swaddle around 4-5 months, and started with the day time to see if it interrupted his sleep. When that was successful for a week, we ditched it entirely.