I would make the suggestion that you use the cotton yarn, acrylics can be irritating to the scalp that is already tender. Pattern wise, I think the sky is the limit.ktdeluxe said:I have a dear friend who will be starting chemo after breast cancer surgery. I would like to knit her at least a couple of hats, maybe one for sleeping and another pretty one to wear outside during the day. Does anyone here have any experience with the ideals that should be followed and any suggested patterns?