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O+L Deep Fitted Sheet in Antimicrobial IonsilkTM

Crafted from O+L IonsilkTM (eucalyptus silk + antimicrobial silver technology). The fitted sheet that's cooler than cotton, softer than silk and stays fresh.

Crafted from eucalyptus silk and supercharged with silver ion technology from Polygiene®, our fitted sheet is crisp, cool and ultra-soft. It’s 40cm high and elasticated all the way around for a tight fit. Made with Eucalyptus TencelTM fibres, they’re unbelievably soft, naturally hypoallergenic and moisture wicking.
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Cool and Soft

Woven exclusively for O+L from TENCELTM Fibre. Cooler than cotton, soft as silk. Vegan and organic.

Reduces microbes by 99.97%

Using Polygiene StayFresh™, a silver ion technology. In laboratory tests bacteria were reduced by up to 99.97%.

Kind to skin

100% Safe for skin and doesn't disrupt your skin's flora. Hypoallergenic, static-free and Oeko-Tex 100 certified.

Stays Fresh

Save energy, water and money by skipping a wash. Saving the fabric and the planet in the process.

Better sleep

Moisture-wicking lyocell helps maintain the correct temperature all night long.

Free delivery and returns

On unused items within 30 days of purchase.

Our ultimate sheets

Our best lyocell sheets, now antimicrobial for their lifetime.

O+L IonsilkTM combines our custom-woven Eucalyptus TencelTM with industry-leading Polygiene StayFreshTM Technology.

A more hygienic fabric that lasts longer, feels better, is kinder to the environment and 100% safe for skin.

Silver: An ancient hygiene hack

Silver has been prized for millennia for its magical antimicrobial properties.

 

Silver ions interrupt bacteria as they’re trying to duplicate. So instead of two bacteria, you get none. 

 

O+L IonsilkTM  is powered by Polygiene Stay FreshTM Technology.* It’s the same silver technology used in the best outdoor gear and athletic apparel. It’s 100% safe for skin, including the delicate areas around the eyes. 

 

O+L’s IonsilkTM is independently lab-tested in the UK for antimicrobial efficacy, reducing bacteria on IonsilkTM fabric by 99.97% after 24 hours. 

 

Its proprietary salt form binds to fabrics durably, like a dye. Meaning the fabric stays fresh and can be washed less throughout its entire lifetime.

 

*The active ingredient is a biocide = Silver chloride

5/5

The sheet is like nothing else I’ve ever seen. The quality design and workmanship is beautiful. I highly recommend and it fits the owl and lark mattress perfectly.

Rebecca on Trustpilot

5/5

So so soft.......feels very expensive....I'll be purchasing the duvet cover and pillow cases shortly.

JJY on Trustpilot

5/5

Excellent fitted sheets for Owl and Lark mattress . Excellent quality and fit

Andrew on Trustpilot

Designed to make your skin happy

Microbes replicate rapidly on normal bedsheets, contributing to unhappy skin.

 

The Polygiene StayFreshTM Technology in O+L IonsilkTM stops microbe buildup in its tracks, without disrupting the skin’s natural flora.

 

O+L’s lyocell is soft, hypoallergenic and Oeko-Tex 100 compliant, meaning no harmful dyes or treatments were used in its manufacture.

Signature Details

Metallic buttons, subtle satin branding, signature bags, and elegant embroidery elevate our entire sheet collection.

Woven exclusively for O+L

Developed with textile experts, a high-performance textile designed from the ground up for next-generation comfort.

Sustainable and Ethical

Made from trees grown in carbon-neutral regenerative forests in Europe by Lenzing AG.
100% Organic. Using 5% of the water and energy of cotton equivalents.

The most sustainable bedsheets on the planet

Here’s why we think they are:

 

Eucalyptus lyocell uses 1/20th the energy and water of cotton to produce. And our Tencel is derived from regenerative forests that have minimal environmental impact. 

 

Polygiene StayFreshTM Technology allows you to skip a wash (or several) and the sheets will stay fresh. Reducing the impact of detergents, water and reducing energy consumption. 

Better sheets start with better textiles

Next-generation luxury demanded rethinking the way we make fabric. 

 

Thread counts are old news, and traditional cotton isn’t optimum for sleep or the planet. 

 

We spent nearly two years rigorously testing, washing, and sleeping in a variety of traditional and cellulosic fabrics in order to make one that was truly special. 

PERFECT THREAD DENSITY

 

Designed for softness, breathability and comfort. 

 

Comparable in feel to 1000 thread count Egyptian cotton, O+L’s eucalyptus fabric is a 300 thread count, meaning it’s cooler and breathes better than the best cotton. 

 

We weave it in a sateen weave, but with lyocell, this is creates fabric that has sheen but remains crisp to the touch. 

 

THE MOST ADVANCED LYOCELL FIBERS

 

Long-staple TencelTM lyocell fibres are more expensive, but there’s good reason to pay more.

 

The lyocell we use in Owl + Lark sheets is a specially formulated so it does not easily pill and has much greater durability than normal lyocell.

 

Not only that, the fabric gets softer with each wash.

 A FITTED SHEET THAT FITS 

 

1. At 40cm deep, enough for an O+L Mattress, or any other mattress and a topper and mattress protector. 

 

2. Thick non-slip elastic all the way around. 

 

3. Deliberately tightly fit for that crisp feeling when you get into bed. 

PERFECT THREAD DENSITY

 

Designed for softness, breathability and comfort. 

 

Comparable in feel to 1000 thread count Egyptian cotton, O+L’s eucalyptus fabric is 300 thread count, meaning it’s cooler and breathes better than the best cotton. 

 

A sateen weave makes gives the fabric a smooth sheen but remains crisp to the touch. 

 

THE MOST ADVANCED LYOCELL FIBERS

 

Long-staple TencelTM lyocell fibres are more expensive, but there’s good reason to pay more.

 

The lyocell we use in Owl + Lark sheets is specially formulated so it does not easily pill and has much greater durability than normal lyocell.

 

Not only that, the fabric gets softer with each wash.

 

A FITTED SHEET THAT FITS 

 

1. At 40cm deep, enough for an O+L Mattress, or any other mattress and a topper and mattress protector. 

 

2. Thick non-slip elastic all the way around. 

 

3. Deliberately tightly fit for that crisp feeling when you get into bed. 

 

O+L Eucalyptus IonsilkTM
Ethical and Sustainable Performance

1/20th the water of cotton

Far less water and energy is wasted in the production of lyocell fibres compared with other natural fibres like cotton.

100% Organic and using 5% of the energy of cotton equivalents.

Regenerative LenzingTM supply chain

All of the fibres used in our sheets are produced by Lenzing AG, the world leader in sustainable cellulosic textiles.

Made from trees grown in carbon-neutral regenerative forests in Europe.

Using TENCELTM lyocell means we can be confident that the entire supply chain, from tree to sheet, is sustainably managed.

The circular future of sheets

Once lyocell sheets come to the end of their lives, they can be broken down and recycled into brand new fibre, unlike cotton or polyester.

The specific qualities of lyocell derived from eucalyptus fibres make it very well-suited for sheets and much better for the skin. We think it's the future of sheets.

Selected FAQ

Polygiene StayFresh, the technology used in O+L’s IonsilkTM is very effective. 

Polygiene StayFreshTM inhibits the growth of odor causing bacteria in textiles by up to 99.99%.

Yes. It is based on silver ion technology, recognized for centuries with no harmful effects. Polygiene is used in medical, food and water applications.

Yes, repeatedly. The functionality of Polygiene StayFresh is tested to various standards such as ISO, AATCC, IBRG, JIS L and AAA. All tests are performed at independent laboratories around the world. We also undertake on-going quality control tests, environmental and wearer trials.

O+L Ionsilk fabric has been independently tested for efficacy in the UK by IMSL MICROBIOLOGICAL SERVICES LTD and shows excellent antimicrobial properties. 

Polygiene StayFresh is effective for the useful life of our sheets. And tests show that it has an odor inhibiting effect after up to 100 washes.

No. You can’t see the treatment and it doesn’t change the look and feel of a treated textile.

Yes. It can be effectively recycled together with other textiles.

Polygiene StayFresh keeps products fresh and hygienic, meaning treated products can be washed less enabling them to last longer while using less energy and water throughout the lifetime of the sheet. 

A prolonged lifetime is the major contributor to a reduced environmental footprint and a more sustainable product.

No. We don’t use nano-technology or pure silver due to ongoing safety concerns.

Polygiene pioneered the use of antimicrobial treatments and remains the recognised leader and most trusted supplier of anti- microbial technologies for textiles.