A duvet is a type of bedding consisting of a soft flat bag filled with either down, feathers, wool, cotton, silk, or a synthetic alternative, and is typically protected with a removable cover, analogous to a pillow and pillow case.

Is eider down better than goose down?

Eiderdown offers better insulation and cling

Whatever the evolutionary reasons, eiderdown, objectively speaking, will keep you warmer than goose down, and it'll keep you more consistently warm long after a goose down duvet or comforter has lost its shape, cohesion, and insulating properties.

Where does eider down come from?

Eiderdown, or eider down, comes from the Common Eider Duck, a large migratory sea duck. The common eider duck ranges along the northern coasts of eastern Siberia, Europe and North America. Approximately 85-90% of the worlds eiderdown comes from Iceland, 10-15% comes from Canada.