Down is a waste by-product of the world wide industry that raises geese and ducks for food. Pacific Coast buys the finest raw materials available from poultry farms and feather brokers in fifteen different countries. For more information about the sources of down read Everything You Ever Wanted to Know About Down and Feathers . See How to Select a Comforter for details describing each of these factors. The duvet cover I purchased is not the same dimensions as my comforter.
Different manufacturers use different dimensions for twin, queen and king sized.
Refer to the tag of your comforter for the exact dimensions. When buying a duvet cover be sure to get a cover at least as long and wide as your comforter's dimensions. Do not try to stuff the comforter in a cover that is too small, as this will constrict the down from its lofting potential. It is not unusual for the duvet cover to be several inches longer in one end. This can be easily altered for closer fitting cover.