So, how can a family keep their sleeping bags from getting all musty smelling over the winter?
Page 228 in The Trouble with Tulip recommends the following:
First, store them in a cool, dry place like a closet - never the basement.
Second, don't roll them up too tightly or they won't have room to breath when you store them.
Finally, when to do store them slip a fabric softener sheet down inside.