300TC Cotton Sateen Fitted Sheets

You've slept somewhere with sheets like that — the ones that don't drag off the corner no matter how much you move in the night. That's rarely down to thread count. It's down to fit. A sheet with shallow pockets and weak elastic works loose by 3am regardless of how soft the cotton feels folded up in the shop.

This one's woven from 100% cotton in a sateen finish — a four-over-one-under weave rather than the plain over-under of percale, which is what gives sateen its slight sheen and smoother hand-feel. At 300 thread count it stays breathable enough for year-round use, without the heavier drape you get once you move past 400 TC.

30cm deep corners, elasticated the full way round rather than just at the corners, hold it to the mattress properly instead of just clinging on at the edges. It comes in Single, Double, King and Super King — worth checking your mattress width before ordering, since UK King (150 x 200cm) and Super King (180 x 200cm) are 30cm apart and the sheets aren't interchangeable. If your mattress has a topper or sits deeper than standard, check the pocket depth against it — that measurement decides whether a fitted sheet stays on, not the thread count.

Machine washable at 40°C, it softens with wear rather than pilling or thinning out. Tumble dry on low or line dry to cut down on ironing. White, so it sits under any duvet cover or blanket you've already got without a colour clash.

Free delivery on orders over £35, 365-day returns if the fit's wrong for your mattress, no minimum order if you're taking more than one set.

FAQs:

What size mattress does a Super King fitted sheet fit?

180 x 200cm. If your mattress measures 150 x 200cm, you need King, not Super King — they're not interchangeable despite the 20cm-wide names looking similar on a size chart.

How deep are the corner pockets?

30cm — fits most standard UK mattresses. If you've got a topper or a deep pocket-sprung mattress, measure the total depth first; a pocket that's too shallow will pop off the corners overnight.

Will 300 thread count feel thin?

No — 300 TC cotton sateen has a smooth, substantial hand-feel. Thread count on its own doesn't tell you much; weave type matters just as much, and sateen reads heavier and silkier than a percale weave at the same count.

Can I tumble dry it?

Yes, on a low heat setting.

Does it need ironing?

Not if you tumble dry it straight after the cycle finishes and put it on the bed while still slightly warm — that's usually enough to avoid heavy creasing.

Will it shrink?

Minimal shrinkage on the first wash is normal for cotton. Wash at 40°C to keep it to a minimum.

Size Guide (UK)