Exceptionally rare down. An entirely different sleep experience.
Eiderdown is one of the world's most precious natural filling materials. Exceptionally light, warm and breathable, it is collected only in very small quantities.
The Dauny Eider Collection combines this rare natural fibre with Swiss craftsmanship, meticulous quality control and the finest cover fabrics.
A gift from nature, available only in very small quantities.
Eiderdown is one of the world's most precious natural filling materials. In Iceland, it is collected by hand after the eider ducks have left their nests.
Each cluster is exceptionally light, warm and breathable — a natural material that provides warmth without feeling heavy.
Made with Swiss precision.
Billerbeck has been crafting bedding since 1921, combining experience, care and a deep understanding of natural materials.
Dauny Eider duvets combine rare eiderdown with the finest cover fabrics, precise craftsmanship and remarkable lightness.
Every Dauny Eiderdown duvet is made in Switzerland with exceptional care: filled by hand, inspected and finished to the highest standards. Its fine silk cover allows the eiderdown to move freely, creating an exceptionally light, naturally warm sleeping experience.
As part of Billerbeck's bedding tradition since 1921, Dauny combines rare Icelandic eiderdown with Swiss craftsmanship, meticulous quality control and the finest fabrics.
Explore the Dauny Eider Collection
Choose from luxurious Soft Plus eiderdown pillows, lightweight Dauny Eider Caro duvets and warmer Cassettino duvets with a warmth rating of 4.
PRIVATE EIDERDOWN CONSULTATION — ZURICH
A personal decision.
Choosing an eiderdown duvet depends on your preferred warmth, size, cover fabric and sleeping environment — and should feel right for your home.
We offer discreet, no-obligation personal consultations in Zurich and the surrounding area.
Frequently Asked Questions
Eiderdown is one of the world's most precious natural filling materials. It is exceptionally light, warm and breathable, creating a cocooning, temperature-regulating sleeping experience that feels almost weightless.
Eiderdown is collected in very small quantities from nests that eider ducks have abandoned. It is carefully gathered, cleaned and sorted by hand. Its rarity, labour-intensive processing and remarkable properties make eiderdown so valuable.
Eiderdown is much rarer and has a distinctive natural structure that helps the down clusters cling together. This allows them to retain heat evenly while feeling exceptionally light. Compared with ordinary down, the result is a finer, quieter and more luxurious sleeping experience.
Dauny Eider Caro is the lighter, more versatile version, with a warmth rating of 1 to 3 — ideal for summer, transitional seasons and year-round comfort. Dauny Eider Cassettino is warmer, with a warmth rating of 4 and a Kassette II construction. It is better suited to cooler nights or those who need extra warmth.
If you prefer an exceptionally light eiderdown duvet, Dauny Eider Caro is an excellent choice. If you need more warmth or tend to feel cold at night, Dauny Eider Cassettino with a warmth rating of 4 may be more suitable. We are happy to advise you personally on size, warmth and fabric.
Yes. The Dauny Eider Collection also includes luxurious Soft Plus eiderdown pillows. They combine an outer layer of 100% eiderdown with a supportive core of goose down and fine feathers for soft support and excellent comfort.
Each product page describes the silk shell and design offered for that model. For other fabrics or designs, please contact us before ordering so we can confirm the available options, pricing and delivery time.
Availability and delivery time depend on the selected model, size and silk design. Contact us before ordering and we will confirm the current availability and delivery time of your chosen version personally.
Dauny Eider duvets and pillows should be aired regularly, but not washed at home. Avoid machine washing, tumble drying, ironing, bleaching and dry cleaning. For professional refreshing or care, we are happy to advise you personally.
Yes. Dauny/Billerbeck's professional cleaning service can expertly clean, inspect and refresh premium duvets and pillows.
With a full service, the filling can be cleaned, dedusted, disinfected and topped up with fresh down if needed, helping preserve long-term comfort.
Our consultation is discreet and without obligation. We discuss your preferences, the ideal warmth level, size, cover fabric and your personal sleeping environment.
We are happy to meet you in person in Zurich and the surrounding area. For serious enquiries, a private consultation is also possible throughout Switzerland — including at your home, if preferred.
