Duvet Set
- 100% long-staple organic cotton
- Four-over-one sateen weave
- One duvet cover, two shams
Purely Organic
Crafted from 100% GOTS-certified organic cotton, our bedding is as pure as it gets. Grown without toxic pesticides or harmful chemicals.
Clean Cotton
From seed to soil, our cotton is grown without any synthetic fertilizers — keeping the land, water, and farmers’ communities clean and thriving.
Together, We Thrive
Every Square Flower product reflects genuine collaboration — fair pay, ethical partnerships, and shared responsibility for a better way of making.
Details
Made from 100% long-staple organic cotton, our sateen weave creates a buttery-soft luster that only improves with every wash. Thoughtfully designed with 9 hidden buttons for a secure fit and a smooth finish.
Size Guide
Duvet Sets:
Twin: 68″ x 88″ Full: 88″ x 88″
Queen: 88″ x 88″ King: 104″ x 88″
Shipping & Returns
Enjoy free shipping on all orders, delivered right to your door with care. If your bedding isn’t the perfect fit, we’ve got you covered—our 30-day hassle-free return policy makes it simple to exchange or return your purchase.
Why you'll love Square Flower
Made of the Rarest Organic Cotton
We scoured the earth for the softest organic cotton we could find: it's the longest staple possible for an incredibly soft hand feel. Less than 1% of the world's cotton meets our quality. This rare fiber produces a smoother, stronger fabric.
Long-Staple Fibres for Strength
Crafted with extra-long cotton fibres that deliver a smoother, stronger weave — designed for lasting softness and resilience through years of washing. The result is a fabric that stays luxuriously soft, even after countless nights of use.
Sateen Weave Finish
Our sateen weave offers a luminous sheen and smooth drape, creating a hotel-quality finish that’s soft, breathable, and indulgent to the touch. It creates a beautifully polished surface that stays cool, soft, and breathable through every season.
Ethically Made, Fairly Paid
Every Square Flower sheet is made by skilled partners who are paid fair wages and work in safe, supportive environments. Our commitment to people is as strong as our commitment to quality — because comfort starts with care.
Ultra-Soft Pre-Washed Feel
Pre-washed for an irresistibly soft texture that only gets better over time — the kind of comfort you look forward to every night. Each wash enhances the fabric’s gentle feel, making it softer with every sleep.
Tailored Fit
Our sheets are made slightly oversized for easy bed making and effortless style, with a refined, wrinkle-minimizing fit that flatters your bed and holds its shape beautifully.
Over 600 Five Star Reviews!
from 631 reviews
Sheet Set
Softest sheets ever. Deep pockets, easy to fit, and they get softer each wash.
Duvet Set
Beautifully packaged, soft, and comfortable. Feels luxurious and ready for perfect nights’ sleep.
Organic Fitted Sheet
Quick, helpful customer service. The sheets are soft and great quality.
Duvet Set
So soft and beautifully finished. Love the natural colour and button detail.
Organic Fitted Sheet
Thick, soft, and luxurious. Easy to fit and feels incredible on the skin.
Duvet Set
Muted grey, matte finish. Ethically made and feels beautifully smooth and premium.
Organic Fitted Sheet
Perfect balance of softness and strength. Love the corner tags and easy fit.
Organic Fitted Sheet
Super soft, fits perfectly, and still feels new after many washes.
Organic Fitted Sheet
Love this product. I’ll be buying all my bedding from Square Flower.
Organic Fitted Sheet
Ethical, well-made, and beautifully soft. Exactly what we hoped for our new bed.
Why Fairtrade Matters
“Fairtrade helps us grow cotton sustainably while providing for our families.”
What is our Raw color?
The Raw color is natural, unbleached cotton with a warm, organic tone that hasn’t been dyed or processed. It offers a unique, earthy aesthetic that pairs with minimalist interiors.
What is long-staple cotton?
Long-staple cotton has longer fibers than regular cotton, creating smoother, stronger, and softer fabric that lasts longer. This makes it more resistant to pilling and ensures lasting quality wash after wash.
How do I properly clean my sheets?
Machine wash cold with mild detergent, tumble dry low, and avoid bleach to protect the fibers and color. With gentle care, your bedding will maintain its softness and strength for years to come.
Do your sheets wrinkle easily?
Our sateen weave resists wrinkles more than percale, but for a crisp look you may lightly iron or steam. Many customers embrace the natural drape for a relaxed, elegant feel.
What is a four-over-one sateen weave?
This weave passes four threads over and one under, creating a silky-soft fabric with a subtle sheen. It balances durability with luxury, giving you both comfort and style.
Do you ship internationally?
Yes. We currently ship to Canada, the United States, and the United Kingdom. Orders typically arrive within 5–10 business days depending on your location.
Customer Reviews
Products arrived promptly and beautifully packaged in their cotton bags (sure they will come in useful). They feel very soft and comfortable. Just waiting for our new larger bed to arrive and then we look forward to some lovely nights’ sleep.
Hi , I haven’t actually slept in them yet because I’ve only just got round to washing them but I’m so happy with the softness and quality, and really looking forward to sleeping in them. The natural colour is also something I’m very happy about. The finish including the buttons - all good. Thanks squareflower! Here’s a pic of the super-king just-washed duvet cover drying on my clothes airer -
Muted grey with a dull Matt sheen. Spent a while looking for an ethically made duvet cover and we are delighted with this. Well made and feels high quality
Beautifully smooth pillow cases & duvet cover, has a lovely satin feel & look (hopefully you can see the reflection in photo). Good sizing & beautifully made - other photo shows stitching & the button closures on the duvet cover, which have a neat flap to hide the buttons (like an expensive shirt). Comes in cotton, drawstring bag, inside a padded postage bag. Minimal plastic.
Great quality & value Duvet cover set.
Great product, nice packaging
Absolutely amazing bed linen. So soft and luxurious feel. You just don’t wanna get out of bed. Love them and will order more.
This throw really finishes off the bed so well. I bought the pale grey and it looks so stylish , the quality is wonderful too.
An exceptional cover, sooo comfortable, better than a 5* hotel 😊
Struggled to find nice navy bedding, and was delighted to discover Square Flower. The quality is superb, and at a very good price. It arrived beautifully package in a gift box with each item wrapped in its own drawstring bag (these will be put to good use!). Won’t be buying bedding from anywhere else now.