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A quilted waterproof mattress protector made for a UK super king bed, 180 × 200 cm (6ft). A liquid barrier stops spills reaching the mattress, while the diamond-quilted 200 thread count microfibre surface keeps it feeling like bedding rather than plastic — no crackle, no sweating.
| Skirt depth | 30 cm, 360° stretch elastic |
| Fits mattress up to | 30 cm deep |
| Fabric | 100% microfibre |
| Thread count | 200 |
| Quilting | Diamond quilted |
| Waterproof | Yes — liquid barrier |
| Machine washable | Yes |
| Tumble dry | Yes, low heat |
| Bleach / iron / dry clean | No |
| Colour | White |
This protector fits a super king mattress measuring 180 × 200 cm (6ft) with a depth of up to 30cm. Measure from the top surface of your mattress down to where it meets the base. If your mattress is deeper than 30cm, the skirt will not tuck under properly.
See the Quilted Super King Mattress Protector — same quilting and 30cm skirt, without the liquid barrier.
What size is a UK super king mattress?
180 × 200 cm, also described as 6ft.
Can I tumble dry it?
Yes, on a low heat. Do not bleach, iron or dry clean.
Is it noisy?
No. The waterproof layer sits beneath quilted microfibre, so it feels and sounds like normal bedding rather than a plastic sheet.
Is it suitable for incontinence or bed-wetting?
Yes. The liquid barrier is designed for exactly this, and it can be washed and tumble dried quickly between uses.
How often should I wash it?
Every two to three months for normal use, and straight away after any spill.
| Size | Dimensions | Imperial |
|---|---|---|
| Single | 90 × 190 cm | 3ft |
| Small Double | 120 × 190 cm | 4ft |
| Double | 135 × 190 cm | 4ft 6in |
| King Size | 150 × 200 cm | 5ft |
| Super King (this size) | 180 × 200 cm | 6ft |
Browse all Super King Mattress Protectors or the full range of Mattress Protectors.
All three describe the same UK bed size: 180 × 200 cm, or 6ft across. Retailers spell it differently — you will see super king, superking and super kingsize used interchangeably — but the measurements are identical. If you have been searching for a super kingsize mattress protector, this is the size you want.
Posh Tag is a family-run bedding business on Fieldhouse Industrial Estate in Rochdale, with more than fifteen years in textiles. Orders are picked, checked and packed by our own team 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.
Put a Super King Fitted Sheet — Extra Deep 40cm over the top, add a 13.5 tog winter duvet and a pair of box pillows with zipped pillow protectors. Orders over £30 ship free, so bundling saves on delivery.
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