Yes, my husband is 80 percent deaf, and my the two year old is completely deaf. My children are all learning, except the babies. Maria only knows sound through vibration. If I want to talk to her it has to be with my hands, if I want to talk to Clint when he doesn't have his aids in it has to be with my hands.
A sweater is a shirt, usually long sleeve but I have a few short sleeved ones, that is knit or crochet out of yarn. Wool or acrylic, but I like wool because it gets tighter with body heat or sweat.
I hope it's not necessary either. Shepard has made you current id hasn't she?