Porto Bamboo Viscose Cooling Sheet Set by Sunday Citizen
Available to Ship: 3-7 Business Days
The Porto Bamboo Viscose Cooling Sheet Set by Sunday Citizen is the kind of bedding I would choose for a bedroom where sleeping temperature matters just as much as softness. Smooth and fluid against the skin, the fabric combines viscose derived from bamboo with Outlast® phase-change technology, which responds as body temperature changes by absorbing excess heat when you become warm and releasing it again as you cool. The result is a more considered approach to temperature comfort than simply choosing a lightweight sheet. The complete set includes the fitted sheet, top sheet, and coordinating pillowcases, so the cooling fabric surrounds the areas of the bed that remain closest to the body throughout the night. Crisp White finished with Midnight detailing gives the set a tailored appearance that feels particularly smart against an otherwise simple bed.
Mrs. Mayfair
“If you tend to sleep warm, I would address that first with the sheets rather than simply removing every layer from the bed. These sit directly against the skin, so using a fabric designed to respond to changes in body temperature allows you to keep a properly made bed while making the part you actually sleep in more comfortable.”
Product Details
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70% viscose from bamboo / 30% Outlast® viscose
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Outlast® phase-change technology absorbs and releases heat as body temperature changes
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Smooth, soft hand feel
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Color: White / Midnight
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Set includes 1 fitted sheet, 1 top sheet, and 1 coordinating pillowcase set
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Queen fitted sheet: 60" W × 80" L × 15" D
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Queen top sheet: 104" W × 92" L
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Standard pillowcases: 20" W × 27" L
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King fitted sheet: 76" W × 80" L × 15" D
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King top sheet: 110" W × 104" L
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King pillowcases: 20" W × 37" L
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OEKO-TEX® certified
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Machine washable
Care & Ownership
Machine wash in cold water on a gentle cycle and tumble dry on low. Remove the sheets promptly once dry and smooth them onto the bed while the fabric is still relaxed; this helps preserve their fluid finish without unnecessary pressing. When needed, use steam or a cool iron rather than high heat. Avoid bleach and dry cleaning.
Maker / Heritage
Sunday Citizen grew from the meeting of multigenerational textile expertise and hospitality. Its earliest product was developed for a luxury hotel that needed a blanket exceptionally soft enough for guests yet durable enough for repeated use. The family-run company has since built its collection around that same balance of comfort, practicality, and textile development, remaining directly involved in the design and development of its fabrics and home products.
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.
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