




850 Fill Power Canadian White Down Duvet
The crème de la crème of duvets, this luxuriously lofty layer is plumped with an astounding 850 fill power Canadian white down for the ultimate in opulent warmth. Enveloped in a 400 thread count sateen down-proof cover for a buttery soft feel, the duvet features 12” baffle box stitching to keep the down securely in place, preventing shifting. Our responsibly sourced Canadian white down is both Downmark® and Canadian Down Standard certified.
- 850 Fill Power
- Shell is STANDARD 100 by OEKO-TEX®
- 100% Canadian White Down
- Outer shell is made of 400 thread count cotton sateen.
- Constructed with 12" x 12" baffle box stitching to keep down clusters in place. Loops included on all 4 corners.
- Made in Canada
Dimensions
Queen Duvet
90" x 90" / 850 Fill Power / 31 oz weight
King Duvet
106" x 90" / 850 Fill Power / 37 oz weight
Care
Professionally launder or machine wash cold in a large capacity or commercial washer. Dry on low heat or air dry.
Every few months, to help keep moisture down and the fluffing up, toss your down duvet into a front-loading dryer set on air or low.
Product Certifications
Down Fill
DOWNMARK Certified®
Canadian Down Standard Certified
Outer Shell
OKEO-TEX® STANDARD 100
VC025 195667 TESTEX
OEKO-TEX® STANDARD 100 sets the standard for textile safety, from yarn to finished product. Every product carrying the label has passed laboratory tests for harmful substances. Learn More
Shipping & Delivery
Every piece in our collection ships directly from the maker to your door. We have built The Mayfair Hall this way deliberately — by shipping from the source, we reduce handling, minimize secondary packaging, and decrease our overall environmental footprint. It is one of the ways The Mayfair Hall remains thoughtful about how beautiful things travel through the world. Learn more here.
Return & Refund Policy
We hope you are delighted with your purchase. Should you need to make a return or have any concerns, the information contained in our Returns & Refunds page will guide you through our policies and procedures. Learn more here.
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Frequently Asked Questions
We're dedicated to ensuring your order is delivered safely and promptly. Here's a breakdown of what you can anticipate: Shipping & Delivery
We strive for your complete satisfaction with your purchase. You can find our Returns & Refund Policy here.
For damaged, defective, incorrect, or incomplete orders, we offer a replacement. Please find our full Return & Refund Policy here.
Cancellations must be requested within 24 hours of placing your order. Please note that an order can only be cancelled if it has not yet been packed and prepared for courier pickup, or if production has not yet begun for custom or made-to-order items. Once an order has been packed, is ready for shipment, or is already in production, we are unable to process a cancellation request.
No, all orders from The Mayfair Hall ship from within the United States, so they are not subject to international tariffs or duties.
If an item is currently in stock, we'll begin preparing it for shipment within 3–7 business days. Certain made-to-order, custom, or oversized pieces may require additional production time, which will be indicated on the product page whenever applicable.
If assembly is required, you'll find those details within the product specifications, along with any instructions included with your purchase.
We recommend reviewing the dimensions provided on each product page and, when possible, measuring your intended space before ordering to ensure the perfect fit.
















