Down & feather blankets, duvets, and apparels need to be kept in a clean & ventilate storage area when expected not in use for a long time. A breathable bag or container is preferred to help your down & feather product to maintain all of their natural attributes and make sure your quality sleep experience lasts for years.
Please avoid leaving the down & feather products in severe warm space. Excessive heat might evaporate the natural oils in down. A breathable cotton or paper bag is ideal for down & feather product storage.