
Linen Duvet Cover Set for Kids in Sage
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Rather Marvellous Sleep, Right This Way
A proper night's sleep for your little dreamer starts here. Our Linen Duvet Cover Set for Kids in Sage is fabulously made from 100 percent pure European linen, which, aside from being charmingly breathable and pleasingly soft, also happens to be gentle on even the most delicate of young skin. Think of it as your child’s new bedtime companion, minus the snoring.
Why Choose Our Linen Duvet Cover Set?
- Breathable Comfort: Naturally thermoregulating, it keeps things splendidly cool in summer and cosily warm in winter. Like a duvet whisperer, really.
- Skin Friendly: Hypoallergenic and breathable, ideal for sensitive little humans who deserve a spot of pampering.
- Rather Durable: Woven from sturdy European flax, this set can weather pillow fights, sleepovers, and the occasional juice spill with extraordinary poise.
- Handsome Craftsmanship: Carefully handmade in Lithuania, every piece has that rare something that machine stitching rather lacks.
Product Details:
- Includes one duvet cover with an invisible zipper and one envelope-closure pillowcase.
- 160 grams per meter squared stone-washed linen for an extra touch of plushness.
- Certified by OEKO TEX and European Flax, so you know it’s utterly above board.
Care Instructions:
Pop it in the wash at 40°C or 100°F for a thorough clean. Lighter bits may prefer a delicate hand wash. Steer clear of powdered detergents, embrace the oxygen-based bleach, and hang to dry where possible. Feel free to iron if you’re feeling daring, but the natural crinkle is really rather charming.
Delivery: Thoughtfully tailored in 3 to 5 working days, then boxed up and on its way to your doorstep in another 2 to 4.
Give your child the fabulously soft, properly crafted sleep they secretly crave. Order yours now before the sandman changes his mind.
SHIPPING + RETURNS
THE RATHER IMPORTANT BITS
This rather lovely piece ships directly from our brand partner - we work with independent brands who are absolutely brilliant and work frightfully hard to create beautiful things.
SHIPPING DESTINATIONS
Now, here's the thing - our wonderful brand partners ship to lots of different places, but not all of them can ship worldwide.
Some are brilliant at international shipping, others prefer to keep things closer to home.
At checkout, you'll see exactly where this particular brand can send your goodies.
We're terribly sorry, but shipping costs do vary rather wildly depending on where you are in the world. The exact figures pop up at checkout - no nasty surprises!
RETURNS
You have 14 days to return items.
Now, we absolutely adore our brand partners - they work incredibly hard and we do try to support them as much as we possibly can. So I'm rather afraid we have to pass the return postage costs back to you. Frightfully sorry about that!
🌍 PLEASE CHOOSE THOUGHTFULLY:
Our wonderful partners put their hearts into everything they make.
Ordering multiple sizes to try at home is rather hard on our planet and makes things jolly difficult for these brilliant independent creators.
When in doubt, do ask us first!
The brands we work with all have a chat option, and they love to chat!
PAYMENT
We're frightfully modern and accept all the usual suspects:
Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay, and Shop Pay
SECURE AS HOUSES
Everything's properly encrypted and secure - your details are safer than the Crown Jewels!
All prices in lovely British pounds £ GBP, though international chaps will see converted prices.
Any payment pickle? We're here to help sort things out! Contact us

We are Sostter
We met as children. Grew up a few streets apart. Built dens, rode bikes, and eventually — built Sostter.
It started with a shared love of objects that meant something…things with a past, or at least a purpose.
Now, Sostter is our grown-up version of a treasure hunt: a space where design meets storytelling.
We curate independent brands, one-of-a-kind finds, and everyday essentials with character.
Giving Back
We’re proud to support Sutton Night Watch, a grassroots UK charity making a real difference in the lives of those facing homelessness. Through regular donations of stock, supplies, and essentials, we back their mission to offer warmth, dignity, and practical help to anyone in need — right where it matters most.
Sell with us
Sostter partners with independent brands that intrigue, inspire, and bring something genuinely different to the world of fashion, design, and living. Join us!