King Long - Duvet 90%Hungary White Goose Down

Using the best down to create excellent comfort

IWATA's famous down duvet/comforter is filled with the highest quality down, sourced from specific breeds and breeding environments. The shell fabric is soft, 100% cotton with no additives. Our proprietary technology enhances function and durability and ensures sanitation of natural materials. It can be easily washed at home and line-dried for cleanliness and conservation. Using our down duvet/comforter helps achieve an ideal “ bed climate” to promote good sleep throughout the night!

100% cotton shells are non-resin-treated and weaved into a fine, supple texture. All-natural cotton allows the comforter or mattress fill to breathe well, ensuring a restful sleep. Our cotton shells are woven in our own factory and at the factories of our reliable partners in Japan by skilled artisans.

IWATA's down & feathers

Down surpasses other natural materials in heat retention and moisture absorption/desorption properties. Naturally curled-quill feathers enhance cushioning, stability and breathability. We use only high-quality down and feathers that pass the strict inspection controls of the IWATA Down Laboratory.

Based on sleep science.

Sleep allows our immune systems to build and is a crucial time for our bodies and minds to recover from stress and fatigue. The bedding should not only be comfortable but should also be functional to support good sleep. We have researched sleep, from the mechanisms of the body, position in bed, the frequency of rolling over, to temperature and humidity, all factors informing our product development. As we spend a third of our lives in bed, we owe it to ourselves to ensure that time is as comfortable as possible - our physical and mental well being depend upon it.

Hypoallergenic and chemical-free

Using a process developed in the IWATA lab, Iozone (Ion + Ozone) ensures that allergy causing spores, dust mites, etc. are eliminated, for a completely safe, hypoallergenic pillow.

Artisan-level professionals

IWATA's products are manufactured in Japan using carefully selected, rigorously tested, top-quality materials and tools. Skilled professionals create every product with the utmost care and attention to detail, individually cutting each section of fabric before sewing using lock-stitch machines.

World’s leading sleep specialists

Over the 180 years, IWATA Inc. has been creating bedding, the company has developed and patented innovations in many areas such as down purification, fiber activation, and manufacturing optimization. Pioneers in the field of ‘sleep’ research, the company's unique technical know-how is reflected in its simple, efficient and ecological designs.

International standards

Eco-Tex is an international testing and certification system for screening harmful substances in textile products. Each IWATA product carries Eco-Tex certification. From fill materials to shell fabrics, threads to fasteners, every component is tested for purity and safety.

Stringent in-house standards

While IWATA Inc. is certified ISO9001 (international quality management system) at both its factories and laboratory, the company’s own stringent quality control enables them to confidently use completely natural materials and chemical free, natural processing to create safe, reliable, high-performance bedding.

Product Details

Selling Agency	Japan
Specification	Specifications Fill: Hungary White Goose Down 90% Shell: Cotton 100% Size / Fill (Down) Weight: King Long （KL）: 230x210cm（90.6ｘ82.7in） / 1.9kg（4.19lb） Weight: 　 King Long （KL）: 4.26kg（9.39lb）
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• All the products handling in ALEXCIOUS are the genuine products from the original makers.
• The colors in the product photos may differ slightly from the actual product.
• The design, specifications, appearance, and price of products are subject to change without notice.