The Duvet Cover Set - 100% French Flax Linen
The Duvet Cover Set - 100% French Flax Linen
Size Chart
| AU Size | Duvet Cover | Flat Sheet | Fitted Sheet | Pillowcase |
|---|---|---|---|---|
| Single Size | 140 x 210 cm | 180 x 254 cm | 91 x 193 x 35 cm | 50 x 75 cm |
| Double Size | 180 x 210 cm | 228 x 254 cm | 137 x 193 x 35 cm | 50 x 75 cm |
| Queen Size | 210 x 210 cm | 245 x 274 cm | 152 x 203 x 35 cm | 50 x 75 cm |
| King Size | 240 x 210 cm | 260 x 274 cm | 183 x 203 x 35 cm | 50 x 75 cm |
| XL King Size | 260 x 240 cm | 250 x 270 cm | 200 x 200 x 40 cm | 50 x 75 cm |
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Your body repairs, resets, and recharges while you sleep.
The environment around you should support that process.
Our 100% French Flax Linen Duvet Cover Set creates a naturally breathable, temperature-balanced sleep space designed for deeper recovery and uninterrupted rest.
Quiet luxury. Intelligent materials. Better sleep.
Flax linen is uniquely structured to support the body’s natural sleep cycles. Its hollow fibers allow continuous airflow, preventing heat buildup while maintaining a stable sleep temperature.
It can absorb 20% of its weight in moisture before beginning to feel damp or wet.
The result is a more balanced sleep environment that helps your body stay in deeper stages of rest. No night sweats and its morning headaches.

• Thermoregulating fibers for cooler, deeper sleep
• Naturally breathable structure that enhances comfort all night
• Moisture-wicking performance to maintain an optimal sleep climate
• Durable luxury that becomes softer with every wash
• Oeko-Tex certified
• Naturally hypoallergenic material gentle on skin and sensitive sleepers
This is bedding designed for people who value recovery, clarity, and daily performance.
Because when sleep improves, everything else follows.
This set includes 3 pieces: 1 Duvet Cover (button closure) + 2 Standard Pillowcases

Transform your sleep environment with intelligent natural materials.
Upgrade to the 100% French Flax Linen Duvet Cover Set and experience deeper, more restorative sleep.
Why should I sleep on Linen?
Why should I sleep on Linen?
Naturally breathable & temperature-regulating: Keeps you cool in summer and warm in winter.
Moisture-wicking: Absorbs humidity and sweat without feeling damp, making it great for hot sleepers.
Softens over time: Linen becomes softer and more comfortable with every wash.
Highly durable: One of the strongest natural fibres, designed to last for years.
Hypoallergenic & antibacterial: Gentle on sensitive skin and naturally resistant to bacteria, they won't smell like mold in your cupboard like cotton sheets do.
Sustainable: Made from flax, a low-water crop, and fully biodegradable.
Effortless luxury: A relaxed, timeless texture that elevates any bedroom.
Check out our Linen education page if you want to nerd out on all the Linen benefits.
Washing Instructions
Washing Instructions
Washing Machine: Gentle cycle and cold water. Use a natural/bio-degradable detergent if possible. Alternatively, you can use half of the recommended dose of your normal washing liquid.
Dryer: Low temperature and quick cycle (keep in mind that linen dries easily, so keep an eye to not over dry your sheets).
Check out our Washing & Care Guide to make your linens last for decades.
Shipping
Shipping
We kindly offer FREE Standard Shipping in Australia and other 27 countries. Please check our full Shipping Policy to check the destinations we cover and the expected timeframes.
If you'd like express shipping, please reach out to contact@casalinu.com and we can arrange it.
Return Policy
Return Policy
CASA LINU offers a 14-day return policy on all products to ensure your utmost satisfaction. You can exchange or request a refund in case of faulty products. Please reach out to contact@casalinu.com
You can check our full Refund Policy here.
Customer Service
Customer Service
You can reach out to our e-mail contact@casalinu.com
or call us on +61 423428839 from Monday to Friday 9am to 6pm AEST.
Secure Check-out
Secure Check-out
Shop with peace of mind: our secure check-out process uses SSL encryption and supports all major credit cards, PayPal, Google Pay, Apple Pay and Shop Pay.

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From Pharaohs to Labs: The Cellular Secrets of ...
For thousands of years, humans have turned to flax (Linum usitatissimum) not just for food, but as a material intimately connected to life, and even death. Ancient Egyptians wrapped their...
From Pharaohs to Labs: The Cellular Secrets of ...
For thousands of years, humans have turned to flax (Linum usitatissimum) not just for food, but as a material intimately connected to life, and even death. Ancient Egyptians wrapped their...
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The Science of Linen: Why It’s the Ultimate Sle...
Sleep is not just about hours in bed. The microclimate around your body, how heat and moisture are managed, and how your skin interacts with bedding all influence recovery, hormonal...
The Science of Linen: Why It’s the Ultimate Sle...
Sleep is not just about hours in bed. The microclimate around your body, how heat and moisture are managed, and how your skin interacts with bedding all influence recovery, hormonal...
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Why linen actually becomes stronger when wet?
Here is a lesser-known fact about one of the oldest textiles on Earth: linen actually becomes stronger when it gets wet. This is unusual. Most natural fibers lose strength when...
Why linen actually becomes stronger when wet?
Here is a lesser-known fact about one of the oldest textiles on Earth: linen actually becomes stronger when it gets wet. This is unusual. Most natural fibers lose strength when...




