Most of us wash our sheets and blankets fairly regularly, but the other stuff—comforters, quilts, and pillows—often don’t fit in our washers, or are made of materials we don’t know what to do with. Professional dry cleaners know the best ways to treat these items to make sure they are fresh, clean, and stay in good condition. But if you know exactly what your items are made from, here are some guidelines for at-home care.