Preferred cotton blend for Wallaby

[losnana]

I think I've seen some discussion about cotton blends that do nicely for sweaters, but i cannot find it. I plan to make wallabys for my grand-daughters, but want them to be cotton for spring and fall use. they all live in Virginia, so a cotton-wool blend won't really do, unless I cannot find something better. I know that cotton alone will stretch. Does anyone have any suggestions about a blend that you like?