SPEC
Filling Material | 100% Mulberry Silk |
Filling Weight | 1000g |
Shell Material | 100% organic cotton(60s) |
OEKO-Tex Standard 100 Certification: No harmful chemicals are guaranteed for fabric and filling material.
Asthma & Allergy Relief: A natural fiber that repels dust mites, hypoallergenic quality helps to eliminate allergies and asthma Vs. Cotton and other synthetic fibers.
Perfect for Sleeping: Temperature-regulating properties effectively help to sleep by wicking moisture from the body and adjusting to body temperature.
Multiple Benefits: Super soft, comfy, and smooth yet breathable.

Why Choose Heartcosy?
Crafted with organic cotton shell and 100% premium mulberry silk filling, Heartcosy silk duvet delivers comfortable, temperature-controlled sleep no matter the season.
GET THE MOST LUXURIOUS SLEEPING EXPERIENCE
The power of silk. A all season silk_filled ducet that taps the power of silk to deliver temperature-regulated sleep.
Due to silk’s special porous structure, where 38% of the volume is hollow, silk provides excellent moisture absorption to keep you at a comfortable temperature. Wake up dry and refreshed.


Rest assured, Silk is a hypoallergenic fabric, it is naturally antibacterial and anti-mite, preventing skin irritation and ideal for people with allergies or sensitive skin. No additives or chemicals are added to our silks.
Heartcosy Silk Duvet moves and flows like no other, gently contouring to your body to give you enough snuggle, without feeling heavy or bulky. Softest to the Touch.

OUR MATERAIL
Shell Fabric: 100% organic cotton
Australian long-staple cottonLong-staple cotton is also known as the "king of cotton", longer than ordinary cotton fibers, more silky touch.
FILLING: GRADE 6A MULBERRY SILK
Grade 6A mulberry silk is the highest grade of silk, stronger than the general silk toughness, more durable.
Craftsmanship

10cm Inspection Slit
Closely examine the quality and purity of our long-stranded silk dupion. Unlike other sellers who use short strand silk filling for the duvet, we use 100% natural Long Strand Silk Floss which resists breakage, prolonging the life of the silk duvet.

8 Attachment Loops
Offering a secure attachment to the cover. No more bunching up again.

Expert Quilters
The circular stitching prevent filling shifting for years and years. At the same time, this silk quilt is made of high-quality non-woven fabrics to fix the silk, prevent the silk from running away, and ensure that the silk quilt will not deform after long-term use.

YKK zipper
The use of Japanese precision technology, even after years or even decades of use after countless times being pulled YKK zipper can still maintain the appearance of not falling off, no scratches, and never skewed, broken teeth.

Recyclable packaging
Simple package design, can be used for daily storage, can also be used as a dirty clothes basket.

Artisanal Manufacturing
Our duvet is crafted by the craftsmen to offer you the best sleep experience.
FREQUENTLY ASKED QUESTIONS
Shell fabric: 100% ORGANIC COTTON. Australian long-staple cotton. Long-staple cotton is also known as the "king of cotton", longer than ordinary cotton fibers, more silky touch. Filling: GRADE 6A MULBERRY SILK. Grade 6A mulberry silk is the highest grade of silk, stronger than the general silk toughness, more durable.
Yes, Heartcosy Silk-filled Thermoregulating Duvet keeps the temperature inside the duvet constant at about 68 - 74°F. This is the versatile duvet that you can use year-round.
We strongly encourage using one. It will help safeguard the duvet against sweat, dirt, and stains, and it can easily be regularly thrown in the wash with the rest of your linens.
A properly covered Heartcosy Silk-filled Duvet should not require cleaning under normal conditions of use. If the duvet does require a wash, in the instance of a spill or a stain, we advise handwashing with water.
The Heartcosy Silk Duvet All Serson is covered by a 1-year limited warranty. If there is any issue regarding the products, please feel free to contact our after-sales support team at info@heartcosy.com for the fastest response.