I went thru chemo last year. I wasn't cold during treatments, but sure was after. Each type of chemo causes different side effects. Some are cold during treatment, some after. After each treatment I would freeze to the point my whole body would shake. Thankfully I had a nice fleece snuglet. I had made myself one with the arms. Fleece is nice & soft, very cuddly & not too heavy. I made mine nice & long so I could wrap my feet in it as well. I could stay wrapped up, but yet reach for things without uncovering. It was great. If you make one I'd get non-pill fleece. This is a pdf instruction for making one:
http://www.sissonfamily.com/Sewingro...thesnuglet.pdf