Navy Organic Cotton Sateen Bedding Set – 300 Thread Count

£109.90 GBP £157.00 GBP Save 30% Final sale
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This navy bedding set is made from 100% GOTS certified organic cotton in a 300 thread count sateen weave for a smooth, comfortable feel. The set includes a fitted sheet, duvet cover with concealed coconut shell button closure, and a pair of Oxford pillowcases for a complete, eco-conscious sleep setup.

Each set contains a duvet cover, a fitted sheet, and a pair of Oxford pillowcases (single size: one pillowcase). Packaged in a reusable organic cotton bag from surplus Cottsbury fabric. No single-use plastic.

SizeDuvet CoverFitted SheetPillowcase
Single135 x 200 cm90 x 190 x 30 cm50 x 75 cm
Double200 x 200 cm137 x 190 x 30 cm50 x 75 cm
King230 x 220 cm150 x 200 x 30 cm50 x 75 cm

  • All products are machine washable, wash similar colours on a gentle cycle with cold or warm water.
  • Line dry where possible.
  • Use plant based laundry detergents and no bleaching agents.
  • Use The Seam to repair and upcycle purchase post use.
  • Read more about how to look after your Cottsbury products here.
Need help with sizing?

Check our Size Guide here.

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Navy Organic Cotton Sateen Bedding Set – 300 Thread Count

Navy Organic Cotton Sateen Bedding Set – 300 Thread Count

£109.90 GBP Regular price £157.00 GBP

Our Story, Our Promise


At Cottsbury, our mission is to create products that will take care of you, while you take care of your dreams. Inspired by nature and with decades of industry expertise, we are committed to making organic cotton products that not only enhance your life, but also protect and uplift our global community.

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Frequently Asked Questions

Sateen uses a four-over-one-under weave structure that brings more yarn to the fabric surface than percale. The result is a smooth, slightly lustrous finish with a softer, heavier drape. At 300 thread count, this sits between lightweight summer percale and heavier winter flannel, suitable year-round. It improves in softness with every wash.
GOTS (Global Organic Textile Standard) is the leading international certification for organic textiles. It covers the full supply chain, fibre sourcing, spinning, weaving, and manufacturing. The cotton is grown without synthetic pesticides or fertilisers, and every processing stage meets strict chemical and labour standards. No harmful dyes, heavy metals, or chemical finishes are permitted under GOTS.
Yes. The 300 thread count sateen weave produces a smooth, low-friction surface, and GOTS certification ensures no harmful chemical residues from processing. Organic cotton is widely recommended for people with eczema, dermatitis, or general skin sensitivities.
Cottsbury duvet covers are sized to standard UK dimensions. A Single (135 x 200 cm) fits a standard single duvet. A Double (200 x 200 cm) fits a standard double. The King (230 x 220 cm) fits a standard king without overhang. Size up for deep-fill or continental duvets. The fitted sheet suits mattresses up to 30 cm deep.
Items can be returned or exchanged within 30 days of delivery, unused, in original packaging, and with tags intact. Free shipping applies to all UK orders over 60 pounds. Delivery typically arrives within 5 working days. For international timelines, see the delivery policy page.