The Ethereal Sleep Collection

Redefining the notion of sleep through raw Arctic rarity and Mediterranean sophistication.

The word KIMISOO stems from the Greek word for sleep (κοιμήσου). Born out of a deep search for ultimate serenity and calmness, KIMISOO balances eclectic aesthetics with extraordinary craftsmanship. The Eider Line sits at the absolute peak of this philosophy—an elite, made-to-order collection of duvets and pillows designed to create the ultimate sleep sanctuary.

By marrying the world’s rarest insulating material with high-end European textile tailoring, the Eider Line elevates bedding from a functional necessity to an immersive wellness investment.

The Eider Duvet

Ethereally light, dynamically temperature-regulating, and tailored to endure for a half-century.

The KIMISOO Eider Duvet is the manifestation of blissful comfort. Filled with 100% certified pure Icelandic eiderdown, this duvet offers a weightless embrace that alternative or traditional down fillings simply cannot replicate.

Why Eiderdown Commands a Premium

• The Symbiotic Harvest: Sourced sustainably from the remote fjords of Loðmundarfjörður, Iceland. Local artisans protect wild eider ducks from natural predators during the summer nesting season. Once the ducklings hatch and voluntarily leave for the open sea, the abandoned down is hand-harvested from the nests. No birds are ever forced or harmed.

• Microscopic Intelligence: Eiderdown features unique microscopic interlocking hooks. Unlike standard goose down, it does not rely on bulk for warmth. It expands and contracts dynamically, sensing your body temperature to release excess heat in the summer and trap ambient warmth in the winter.

• A 50-Year Legacy: While mass-produced comforters flatten and lose loft within years, the hand-stitched baffle-box construction ensures an even spread that maintains its structural integrity for up to 50 years.

The Eider Pillow

Perfect structural alignment meets weightless, pressure-relieving softness.

The counterpart to the ultimate duvet, the KIMISOO Eider Pillow is engineered to cultivate serenity. Traditional down pillows often collapse under the weight of the head or trap stifling moisture. The Eider Line solves this by utilizing eiderdown's dense, branch-like structure to provide adaptive, cloud-like buoyancy.

• Ergonomic Micro-Climate: Moisture-wicking and exceptionally breathable, the pillow prevents heat buildup around the neck and head, keeping your skin cool and ensuring uninterrupted REM sleep.

• Custom Density Profiling: Hand-filled to order, the pillow can be calibrated to your exact anatomical sleeping profile—whether you require a lower, softer loft for stomach sleeping or a fuller, supportive density for side sleeping.

Product Specifications & Build Quality

Every item in the KIMISOO Eider Line is hand-tailored to order. We carry zero excess inventory, reducing environmental waste and honoring our core mandate of Bios—a commitment to conscious, responsible living.

Core Insulation and Authenticity

Both the Eider Duvet and Eider Pillow are filled exclusively with 100% pure, wild Icelandic eiderdown. Because this precious material is harvested entirely from protected wild nests, each piece is inherently rare. To ensure its absolute purity and origin, every single item is officially certified and sealed by the Icelandic Government before being delivered to your home.

Casing Options and Shell Performance

The outer shells are crafted from world-class German fabrics, specifically engineered to be entirely hypoallergenic, tightly woven, and 100% down-proof. You can choose to encase your duvet or pillow in our German Cotton Sateen, featuring a 475 thread count and an ultra-lightweight density of 94 grams per square meter. Alternatively, experience the ultimate in tactile indulgence with our German Pure Silk, offering a 442 thread count at 120 grams per square meter for an impossibly smooth, friction-free rest.

Internal Architecture and Craftsmanship

To keep the rare insulation performing flawlessly over time, the collection utilizes specialized structural tailoring. The Eider Duvet features between 24 and 60 individually hand-stitched baffle-box compartments, an intricate grid that keeps the down perfectly distributed and eliminates cold spots. The Eider Pillow is engineered with tailored gusset borders and hand-piped double stitching, providing structural boundaries that maintain the pillow's elegant form and supportive loft.

Tailored Comfort Profiles

Because true luxury adapts to your personal sleep physiology, the collection is fully customizable. The Eider Duvet is available in three distinct thermal profiles: Light for warm climates and warm sleepers, Medium for balanced year-round temperate comfort, and Warm for chilly rooms and cold sleepers. The Eider Pillow is customized by density to support your natural sleeping posture: Soft for stomach sleepers, Medium Soft for back sleepers, and Medium Firm to deliver ideal alignment for side sleepers.

Our Lifetime Promise

An investment in one of our duvets is an investment in your sleep—arguably the most important foundation for your health and lifelong well-being. Officially certified by the Icelandic government, our hand-assembled duvets are built to endure, providing blissful, temperature-regulated comfort for up to 50 years.