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This king size fitted sheet measures 150 x 200cm and is made with an extra deep 40cm skirt, fully elasticated the whole way round. It is cut and finished in 200 thread count microfibre to our own specification. A king bed is longer as well as wider than a double — 200cm rather than 190cm — which is the detail people most often get wrong when they buy a deep fitted sheet for king size beds.
King mattresses are among the deepest in the UK range, and they are frequently paired with a topper. An extra deep king size fitted sheet at 40cm fits mattresses up to that depth — a standard 25cm, a thick pocket-sprung or hybrid, or either of those with a topper on top. If you have been searching for a 35cm deep fitted sheet in king size, a 40cm sheet covers it with room to tuck rather than leaving the corners under tension.
Elastic runs a full 360° around the skirt rather than gathering only at the corners. Across 150cm of width, with two people pulling in opposite directions all night, that continuous grip is what keeps a king size fitted bed sheet on the mattress instead of working loose by morning. The 200 thread count microfibre holds its shape through repeated washing and lies flat once fitted.
Every king size fitted sheet comes in six colours. White is the timeless hotel choice, crisp and clean against any duvet cover. Light Grey is a soft modern neutral that flatters contemporary bedrooms. Charcoal is a deeper, warmer grey for a cosier, more grounded look. Black is sleek and confident for a high-contrast bedroom. Navy Blue is rich and elegant, adding depth and character. Beige is a calm natural tone that brings warmth and softness.
Posh Tag is a family-run bedding business based on Fieldhouse Industrial Estate in Rochdale, with more than fifteen years in textiles. We manufacture our own pillows and cushion inserts here, filled with pure virgin hollow fibre. Our sheets, including every size in this range, are made to our own specification by mills we have worked with for years, then checked and packed by our team in Rochdale. Because we sell direct rather than through a chain of retailers, there is no extra margin sitting between us and your bed.
Machine washable at 40°C and safe to tumble dry on a low heat. Wash similar colours together, particularly the darker shades — black, charcoal and navy blue — to keep the colour looking rich. Take the sheet out promptly once dry and smooth it flat. Avoid dragging or overstretching the corners when fitting and removing it, and store it clean, dry and folded in a cool, airy cupboard.
The same sheet is made in Single, Small Double, Double and Super King. If you are unsure which you need, the fitted sheet size guide lists every UK bed size in centimetres and inches, and explains how to measure the depth of your mattress.
A UK king size fitted sheet is 150 x 200cm, or 5ft. Note it is 10cm longer than a double as well as 15cm wider, so a double sheet will not stretch to fit.
Yes. A king mattress with a topper usually reaches 30cm to 38cm, which sits inside the 40cm skirt with room to spare.
No. A super king is 180 x 200cm, 30cm wider. The length is the same but the width is not, so the two are not interchangeable.
Six: White, Black, Navy Blue, Light Grey, Charcoal and Beige.
Orders are picked, checked and packed by our own team in Rochdale rather than passed to a third party, so if something is not right we deal with it ourselves. Email support@poshtag.co.uk or call +44 7414 441213, Monday to Friday 9am to 5pm, and a person here will answer.
Most people buying this sheet pair it with a King Size Waterproof Mattress Protector underneath, or a Quilted King Size Mattress Protector for extra comfort, plus a 13.5 tog winter duvet and a pair of hotel pillows on top. Orders over £30 ship free, so bundling saves on delivery.
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