As with any rule of thumb, rules were meant to be broken. Ducks actually produce the *best* down. The Eider duck produces a fine 700FP-750FP down that many consider the best you can buy. It actually holds heat better than goose down, regardless of the fill power. Fill power only measures loft, NOT the actual insulating value of the down. Eider down is “clingy”, not slippery like goose down, meaning it will form a more even layer in a bag preventing cold spots/under filled areas. It is also more water proof than goose down, naturally. And each barbule on a plume is more springy making it compress/recover better. Why don’t I use it?? COST. The 16-18oz fill alone for a sleeping bag runs between $1000-6000. Beware of mixes and “Eider” brand names, they usually are not 100% premium eiderdown.
The comforter gets a lot of the credit for making your bed into the plush slumber sanctuary that it is. The quilt, meanwhile, is one of the most underrated bedding elements, easily adding extra warmth in the winter and a lighter cover option in the summer, as well as a tailored, textural layer that enhances the overall look of your sleep space year-round. Here are nine quilts that we wouldn't dream of kicking out of bed.