Often when we think of silk, we imagine a lustrous, smooth fabric used for clothing and sheets. In fact, there are dozens of different types of silk exist — mulberry, habotai, spider — and many different methods of processing it. Plus, there are several countries that produce silk, including China, India, and Thailand. Silk from one region will have unique properties from silk in a different region. 

When it comes to China — where silk was born — “raw silk floss” is used to fill duvets and comforters. It means the silk is left in its raw, natural state to be hand stretched, rather than being uncoiled, spun, and woven into traditional fabrics. The raw silk is fluffy, soft, and lightweight as opposed to shiny and slippery.

KAILU raw silk duvets can last 15 to 20 years, if you treat them with care. We designed our duvets to include a removable duvet cover to protect the raw silk and to feel luxurious next to your skin. To clean, remove your duvet cover and machine wash it separately with lukewarm water and gentle detergent.

We never recommend machine washing or wet cleaning the raw silk core, as this will make the layers stick together, degrade the silk, and shorten the lifespan of your duvet.

Please read our Care instructions carefully to ensure your KAILU raw silk duvet maintains its unique qualities.  

The KAILU Raw Silk Duvet features a single or dual core, allowing you to purchase your ideal weight and easily customize your duvet for warmer or cooler months. Our single core duvets are ideal for warmer climates and clients who sleep on the warmer side. Our dual core duvets are easily customizable for all four seasons: insert one raw silk core for summer, and two for winter. For more details on weight and what's included, go to Single vs. Dual Core Duvets and take our Quiz. 

If you choose a single core duvet and then decide you need a dual core, we do allow returning customers to purchase one (1) additional raw silk core of the same size at a special price (equal to price of the dual core duvet minus the price of the single core duvet). So, it's as if you ordered a dual core duvet all along. Please note: additional shipping costs and sales taxes will apply. 

Bedding sizes vary widely from brand to brand, and country to country. Please take a look at our duvet measurements before ordering. 

Queen: 86 in. x 86 in.
King: 94 in. x 104 in.
Emperor: 98 in. x 110 in.

We recommend Emperor for a Cal-King bed, and Queen for a Full or Twin bed.

If you prefer a draped look or to tuck it under your mattress, we recommend choosing the next size up. 

KAILU raw silk duvets can last 15 to 20 years if you treat them with care. We recommend ordering a Queen size duvet for a Twin bed. That way, your child's duvet can grow with him or her into adulthood, and we also reduce waste. 

If your child is having accidents, we recommend buying our raw silk duvets later, when he or she is accident free. Exposing raw silk to water can degrade its unique protections, and make the raw silk clump and stick together.  

Our raw silk duvets are made from the highest-grade, long-strand Mulberry silk. Less expensive silk duvets usually do not include duvet covers like ours do. Plus, they may contain less silk by weight and lower-quality silk such as "broken silk." Whereas KAILU raw silk is naturally white and stretched into layers, "broken silk" is brown in color, has a clumpy texture, and cannot be stretched into the same layers that make our raw silk duvets so smooth and luxurious.  

Our cotton sateen duvet covers have a thread count of 376, but thread count is not a great way of determining quality. Instead, look at the weave. Cotton sateen has a classic four-over-one weave using cotton yarn in both warp and weft, making it soft and warm to the touch. We chose it for its crispness, slight sheen, and elegant drape. 

Our raw silk duvets and throws are designed in San Francisco, California, U.S.A., and handmade in a family-owned workshop in the Yangtze River Delta — beginning of the maritime Silk Road and favorite silk region of the Qing Dynasty emperors and imperial court. It's located in the Zhejiang Province, southeast of Shanghai, China.

The proof is in our product: simply unzip your raw silk core to feel the finest, long-strand Mulberry silk, which can only come from silkworms fed with organic Mulberry leaves. If chemicals or other foods were introduced into their diets, they would produce raw silk that is rough, brown, and low-quality, and would never pass our farmers' exacting hand inspections. We believe only you can decide what's ethically and responsibly made, so instead of paying for certifications, we show you what happens on our farms and in our workshop and pass the savings onto you. 

Our packaging includes reusable vacuum storage bags and decorative linen/cotton bags. If you're not using one of your raw silk cores, simply fold it, insert it into the vacuum storage bag, and remove the air with your vacuum cleaner. Small sized inserts may fit into the decorative linen/cotton bags without compression first.

When cooler weather comes around again, simply remove the raw silk core(s) from the vacuum storage bag or linen/cotton bag and re-fluff. 

If you choose a single core duvet and then decide you need a dual core, we do allow returning customers to purchase one (1) additional raw silk core of the same size at a special price (equal to price of the dual core duvet minus the price of the single core duvet). So, it's as if you ordered a dual core duvet all along. Please note: additional shipping costs and sales taxes will apply. 

If the second raw silk core is unopened and still in the original packaging, we will accept the return. Please note: your refund will be equal to the price difference of the dual core and the single core prices, equal to $125 for queen size, $150 for king, and $175 for emperor. You will also be responsible for return shipping and a 10% restocking fee. If you're not sure what weight to order, please read Single vs. Dual Core Duvets or contact us at lili@kailusilk.com. 

We do allow repeat customers to order additional duvet covers if they want an extra on laundry day, want both colors, or just want a backup. Please email lili@kailusilk.com to receive a special link to purchase extra duvet covers. Please note: additional shipping costs will apply.

If you have a duvet cover you love, please feel free to insert the entire KAILU raw silk duvet — cover and all — into your duvet cover at home. Having two covers will add extra protection, and should not impact breathability.

Our raw silk duvets work as a system: there are ties on both the raw silk cores and duvet covers so everything lines up and fits perfectly.

We do not allow new customers to buy raw silk cores separately. 

We do allow repeat customers to buy additional raw silk cores if they wish to switch from a single core duvet to a dual core duvet. Please email lili@kailusilk.com if you're a returning customer who wishes to do this.

Please note: additional shipping costs and sales taxes will apply.

Raw silk cores come with a 10-year warranty. We do not offer a warranty on any other items. The warranty is void if Care instructions are not followed. 

We guarantee our merchandise to be free of manufacturing defects or other quality-related issues. Defective items, such as fabric flaws or zipper problems, can be returned for repair or exchange within 2 years of purchase.

At this time, we do not have site-wide discounts or sales. Our raw silk duvets are made in small batches and from cocoons harvested in the springtime, when the temperature is ideal for raising silkworms. We are a quality-driven brand, and do not ask our artisans to compromise quality in order to keep up with spikes in demand.

We may offer special promotions at select events. Please note, we do not offer price adjustments to purchases made prior to or after events, and we do not allow promotions to be combined. Gift cards are not included in our promotions. If you would like to find out more about our events, please reach out to hello@kailusilk.com and request to be added to our mailing list.

We do not honor codes, discounts, and coupons from third-party promotional websites.

Please place an additional order if you would like to add items to your existing order. 

In-stock items usually ship within 24 to 48 hours after you place an order. Contact us within one (1) hour if there is an issue. If your order has not yet shipped or is on backorder, we will accept cancellations. Once an item has shipped, cancellation is not possible. Instead, you will need to return any unwanted items and be responsible for shipping and restocking fees. 

Custom and special order items cannot be cancelled. 

We accept all major credit cards and digital payments such as Google Pay and Apple Pay. We only accept Gift Cards issued by KAILU.

Enter your shipping address at checkout to see the sales tax amount. Sales tax rates vary by state and country, and are subject to change. Sales tax applies for orders shipped to Alabama, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nebraska, Nevada, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Texas, Utah, Vermont, Virginia, Washington, Wisconsin, and Wyoming. 

Additional tax and duties apply for international shipments. 

Shipping to Alaska, Hawaii, American Samoa, Guam, Puerto Rico and the US Virgin Islands is calculated by our carrier. 

International shipments are calculated by our carrier, and may result in additional taxes and duties. Please note, duties and other international shipping charges are not refundable.

Expedited shipping is calculated by our carrier.

Order processing: 24 to 48 hours

Standard shipping: 7 to 10 business days

If we need to split your order into multiple shipments, we'll send you a tracking number for each shipment. 

Currently, all items shipped with standard shipping are automatically being sent with expedited shipping in order to compensate for COVID-19 shipping delays. Please contact us at hello@kailusilk.com if you require an item to be arrive in fewer than 7 business days, and we will try to accommodate.

Please set up an account at checkout to track your shipment. You can then log in and view information as we receive it from our carrier. 

If you wish to return an item, we are happy to accept returns within 100 days from the order date. You'll be refunded according to the original method of payment, less a restocking charge equal to 10% of the purchase price. You will also be responsible for return shipping charges. Shipping charges are not refundable.

We do not accept any returns or exchanges on custom or special orders. Sample sale items are sold as is, and all sales are final.

Please see our complete Return Policy.

You are responsible for return shipping charges and a restocking charge equal to 10% of the purchase price. Restocking charges go toward dry cleaning, delivering, and donating duvets to breast cancer patients with the Compassionate Healing Foundation, which provides patients a restorative experience through complimentary spa therapies. Unopened items are also subject to a restocking charge, as we must professionally clean any and all items before donating to patients, and you will be responsible for return shipping charges.  

Returned items are professionally cleaned and donated to our partners at the Compassionate Healing Foundation, which provides free skincare therapies to cancer patients undergoing chemotherapy and radiation. KAILU is proud to partner with Compassionate Healing to donate returns to patients in order to help lessen the symptoms of hot flashes due to cancer treatments and to bring some joy to these patients during their journey. 

If the second raw silk core is unopened and still in the original packaging, we will accept the return. Please note: your refund will be equal to the price difference of the dual core and the single core prices, equal to $125 for queen size, $150 for king, and $175 for emperor. You will also be responsible for return shipping and a 10% restocking fee. 

If you're not sure what weight to order, please read Single vs. Dual Core Duvets or contact us at lili@kailusilk.com. 

Still not sure? Order the single first and add on later. We do allow returning customers to order additional raw silk cores at a special price. Please note: additional shipping costs and sales tax will apply.   

We are happy to offer exchanges on gifts, or issue a gift card in the total amount of the gift items(s) for returns. Please note: additional shipping costs and sales taxes may apply.

KAILU means "open road" in Mandarin. The name is derived from Kailushen, a Chinese god (shen) who removes road barriers and clears the way.

To read more about our origins, see Our Story.

Yes! You can touch and feel our raw silk duvets in any of our brand partners' sleep boutiques and showcases. Shop in pressure-free environments or come back to our website to order when you are ready.

Yes, KAILU partners with design and hospitality professionals to create custom orders for clients and to up level their guest experience. 

Please see our Interior Designers + Hospitality page for more information.

As a member of the Good Future Design Alliance, KAILU packaging has been designed to reduce waste. Each order comes with beautiful linen/cotton travel bag(s) — decorated with a vintage 1940s Shanghai peony-and-bird pattern — and tissue paper. So, no, we don't offer traditional gift wrapping. But we think you and your gift recipient will be pleased.