I have wrapped all my kids until they are around 9 months old. They do roll in their wraps but by that time I wrap them losely and they can get their arms out. I also stop using the wrap with their arms by their sides around 2 months old and I angel wrap them using a cot sheet from that point.

My kids have all loved the comfort of wrapping and it does help.

I'll find you a link for angel wrapping because it is better for older babies - they can get their hands to their mouths to suck and they can move but it still stops the startle reflex in younger babies and gives them the security they need in older babies.