HEARTCOSY Mulberry Silk Duvet

Natural Temperature Regulation Expert
Experience year-round comfort with 100% mulberry silk's unique porous structure, featuring 35% natural air pockets that intelligently regulate your sleep climate. The fibers reduce heat transfer during colder nights while efficiently releasing excess moisture in summer—creating your perfect micro-environment regardless of the season.

Certified Infant-Grade Safety
Rest assured with bedding that meets rigorous Class A safety standards (GB18401-2010). Our silk is formaldehyde-free, contains no optical brighteners, and provides 99% mite resistance. We maintain uncompromising safety in every thread for direct skin contact.

Craftsmanship You Can See
Inspect the premium quality through our hidden zipper closure. The 60s sateen cotton shell combines with high-density weaving to prevent silk leakage, while precision anchor stitching ensures permanently even fill distribution without clumping.

 All-Season Smart Layering System
Innovative connecting tabs create three seasonal solutions: use the 500g inner layer alone for summer, the 1-1.5kg outer layer for spring/fall, or combine both for 2.5-3.5kg of winter warmth. One duvet adapts to all climates.

Easy-Care Luxury Experience
Machine washable without compromising the 93/100+ silk cleanliness rating. The weightless design eliminates sleep pressure, making it ideal for children, sensitive sleepers, and those with delicate constitutions—democratizing luxury comfort for all.