HEARTCOSY Pure Mulberry Silk Duvet Insert
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Premium Double Cocoon Silk Construction
Crafted from 100% natural double cocoon mulberry silk, our duvet features medium-length silk fibers that are hand-stretched for optimal loft. The natural protein structure closely resembles human skin, providing unparalleled softness and elastic comfort.
Advanced Climate Regulation
Experience perfect temperature balance year-round. Silk's inherent porous structure wicks moisture and promotes airflow—keeping you cool in summer and warm in winter. Choose from multiple weight options tailored to different seasons and room temperatures.
Certified Safety & Hygiene
Meeting strict Class A standards (infant-safe certification), this duvet is antimicrobial, dust mite resistant, and free from harmful chemicals. The breathable cotton shell ensures healthy, irritation-free sleep for even the most sensitive skin.
Thoughtful Craftsmanship Details
From the secure anchor stitching that prevents fill shifting to the convenient silk viewing window and security loops, every detail is designed for lasting performance and easy maintenance.
Versatile Comfort Solutions
Available in multiple sizes with specialized weight options—from lightweight all-season to deep winter warmth. Whether for master bedrooms or guest rooms, find your perfect match for restorative, oxygen-rich sleep.
We provide a one-year warranty. However, if your size is a custom size, we can not accept returns.
The curtains will be made after we receive the order. Shipment will take about 2-3 days after the order is placed.