How do I care for my eiderdown duvet/comforter/pillow?

Eiderdown bedding requires very little in terms of product care.

But to preserve the exceptional quality of your eiderdown bedding, we recommend the following:
Use a high-quality cover - Cotton, silk, linen, or bamboo covers are all suitable. This will protect your duvet or comforter, keeping it clean and reducing the need for washing. You can wash your covers as you would your regular sheets.
Air it out regularly – Eiderdown thrives on fresh air. Simply shaking it out and letting it breathe will maintain its loft and softness. 
Wash when necessary – Unlike synthetic fillings, eiderdown doesn’t trap odors or bacteria, so it rarely needs washing. Washing can degrade the eiderdown’s physical properties if it is not done professionally (or properly!). 

If washing is necessary:

Clean professionally: To ensure the down remains intact, we recommend washing your bedding with trusted professional cleaners. Ideally, this would be a company that specializes in or is experienced in cleaning down bedding.
Wash delicately: If washing at home, use a delicate cycle, down-specific detergent, and cold water.
Dry thoroughly: Down takes a long time to dry, and eiderdown takes even longer. Even after it feels dry to the touch, keep drying it using a low-heat tumble dryer until it fully expands (just like a down jacket).r guidelines: