Down duvet Interlaken 4 Season

💤 Billerbeck Duvet / Pillow Goose Down Duvet Interlaken 4 Seasons – Made in Germany & 10% Discount

Experience sleeping comfort at the highest level with the *Billerbeck Goose Down Duvet Interlaken*. Manufactured in *Germany*, it combines artisanal precision with materials that have been carefully and *ethically* sourced. Our fillings made from *down*, *new wool*, or *fibres* originate from controlled sources and ensure verified hygiene through the renowned *Swiss Wash* process. The temperature-regulating properties create a pleasant sleeping environment, while the NOMITE® mite protection offers safeguards for allergy sufferers. With certifications such as *DOWNPASS* and *OEKO-TEX®*, we guarantee the highest quality and safety. We offer various *thermal grades* and comfort levels for duvets, while our pillows impress with ergonomic support and selectable firmness.

✅ Premium Materials & Verified Hygiene

This product has been designed to sustainably enhance your sleep quality – night after night.

• 🪶 Ethically sourced goose or duck down (DOWNPASS / RDS)
• 🌬️ Temperature regulation through Outlast® / natural fibres
• 🛡️ Made in Germany & Swiss Wash certified
• 🌿 Allergy-friendly with NOMITE® mite protection
• ♻️ OEKO-TEX® certified & sustainably produced
• 🧼 Washable up to 60 °C / easy care

🧩 Variants & Application Possibilities

🛌 Available in summer, all-season, or winter configurations 🎯 Different filling weights & thermal levels available 🧠 Pillows with selectable firmness – from soft to very firm 🛏️ Suitable for all standard sizes (50x70, 65x65, etc.) 🌀 Ideal for *allergy sufferers*, children & sensitive sleepers 🛋️ Also available as a neck support pillow, sofa cushion or combination pillow

⭐ Your Advantages at Matratzenland

• 📦 Postal delivery throughout Switzerland
• 💳 Purchase on invoice & instalment payment options
• 🧼 100% hygienic – tested & certified
• 🛍️ Showroom selection or direct shipping
• 💰 10% discount on the list price

🛒 Order Now & Sleep Beautifully

Order conveniently through our webshop or benefit from personal consultation in the showroom. Quality, *sustainability*, and comfort – perfectly combined in every detail.