Louis Fish wrote:I should think that a gentle washing then fluffing would help restore loft when it starts to go flat? Spun yarn holds it's twist, but yarn always fluffs a little after a wash, and will get a halo over time as individual fibers loosen. I know sheep wool is used for batting in duvets, and they're supposed to last forever, but I haven't tried one myself. I would look for a breed with a curse wool, something rated for carpets and rugs rather than sweaters and socks.
Rebecca Norman wrote:Knit sweaters don't really seem to compact over time. Or so it seems to me. I wonder if stuffing a cushion with old knit sweaters might be more effective than loose wool?