... characters, 100% cotton. He's 4, but want something that will last pattern-wise (so not too babyish). I love this Aspace design, but they don't do it as a duvet cover, and aside from the astronomical price, have already bought the duvet so don't need a quilt as well. Most of the John Lewis ones are 50% polyester or a bit babyish. Any suggestions please ladies? Thanks!