Dear Wary of Landromats Board Question #17721
What my mother and I have always done with fluffy down comforters is stick it in a bathtub with cold water and detergent and stomp on it (a few 5-minute stepping sessions with 20 minute soaks in between). We then hang it up to dry. This way, the down doesn't get all clumpy during the spin cycle in the washing machine or dryer. It does take a little effort, but it works like a charm.
- The lover of blankets.