Living textiles do 120x120cm muslin wraps which work well. In winter you could tuck a blanket over the top. Or pop to Spotlight and buy some flanelette material and make 120cm or bigger square wraps yourself? Anything less than 120cm don't last very long IME.
Also IME all kids are different and while my DD liked hands up near her face in the Love Me Wraps, DS had to be double wrapped hands by his side.