Dh's grandmother needs some handkerchiefs but can't find any she likes. She needs to have them with her all the time because she had a stroke and has to wipe her mouth every few minutes. She mentioned linen, but not sure if that is really what she needs? Would a 100% cotton white sheeting work?

She asked me if I would make some up for her, and I want to help her out... but neither of us are quite sure what fabric. Can you help?

I make dinner napkins from cotton/linen blend. I find 100% linen to be a bit too rough. You should ask Marina for some of that organic cotton she uses for her nose wipes. It is perfect.