Brinkhaus - Our sleep is too important to not have comfortable, luxurious pillows. Brinkhaus' down around pillow is crafted with a medicott® treated Egyptian sateen cotton casing and filled with 90% Mazurian goose down to the borders with a pure goose feather central core for cushioning support. Brinkhaus - Our sleep is too important to not have comfortable, luxurious pillows. Brinkhaus down around pillow is crafted with a medicott treated Egyptian sateen cotton casing and filled with 90% Mazurian goose down to the borders with a pure goose feather central core for cushioning support.