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Product Details

 Fabric: 100% Cotton

Filling: 30% Bamboo Charcoal Fiber, 70% Polyester

Filling weight: 400 GSM

Warmth Level: 4


Medium weight level 4 duvet Insert. Suitable for all four seasons especially spring and autumn. Also, a great option for summer with the use of an air conditioner and winter with the use of heat.


About Bamboo Charcoal Fiber

Keywords to Clean & Restful Nights: Antibacterial & Purify

Bamboo charcoal, also known as 'Black Diamond,' in Japan is one of the most multi-purpose substances that can be found in household products, beauty products, textile bedding, and even food.


The secret to bamboo charcoal’s antibacterial function falls behind an antimicrobial bio-agent found in bamboo called 'Bamboo Kun'. Our bamboo charcoal fiber is certified by SGS, that the fiber is able to prevent the growth of common bacteria such as E. Coli and Staphylococcus Aureus.

SGS is an international inspection agency based in Switzerland which provides inspection, verification, testing, and certification service.


Bamboo charcoal contains millions of pores, allowing it to absorb and degrade certain toxins, odors, and allergens.   

Bamboo Charcoal Fiber as Duvet Insert  

 After absorbing body temperature, bamboo charcoal will emit far infrared rays which help to improve micro-circulation and provides great insulation.

Product Details

Extended sides: Allow fillings to breathe in the fresh air every time you make your bed.

Security Loops: Can be tied up with a duvet cover to make sure the duvet stays in place.

Construction: Duvet can provide consistent warmth even after washing.



If you have any questions or concerns regarding the material, please check Compare Our Fabrics for your reference.


We offer FREE 2-5 day standard shipping on orders $99 and over (excluding taxes). 

A $5 shipping fee will be applied to all orders below $99. 

Shipping limits to orders in 48 contiguous states of U.S. (excluding Alaska, Hawaii, Puerto Rico)  

All orders will be processed within 24 business hours and shipped out. 

Learn more.



Your satisfaction is our guarantee at Qbedding. If for any reason you are not satisfied with the products purchased, you may return your unused items for an exchange or refund. You may return your purchases within 30 days upon receiving the order, but the items must be unused and unwashed. Please keep in mind that shipping and handling fees are nonrefundable. Also, please note that we are unable to provide free return shipping for any other reasons than your items being damaged or incorrect. However, do not hesitate to use any shipping carrier of your choice. If you would like to purchase a shipping label from us, please feel free to contact us. Learn more.

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