Double Duvet Size in cm: UK & Ireland Standard Dimensions

If you’ve ever stood in a bedding aisle wondering whether the duvet in your hands matches the mattress at home, you’re not alone. The double duvet size in cm — 200 x 200 — is a consistent standard across the UK and Ireland, yet confusion persists about how it interacts with mattress dimensions and what happens with sizes like 240 x 220 or 200 x 230. This guide lays out the exact measurements, clears up regional quirks, and tells you what actually fits.

Standard double duvet size (UK/Ireland): 200 x 200 cm ·
Double mattress width: 135 cm ·
Double mattress length: 190 cm ·
King duvet size: 230 x 220 cm ·
Super king duvet size: 260 x 220 cm ·
Single duvet size (Ireland): 140 x 200 cm

Five core dimensions, one consistent pattern: the double duvet stands as a square 200 x 200 cm while the mattress it covers is rectangular at 135 x 190 cm. That 5 cm overhang on each side and 10 cm at the foot is designed, not accidental.

This table shows the standard sizes at a glance.

The implication: once you know your mattress dimensions, the right duvet size becomes a simple matching exercise — but only if you stick to standard names. Non-standard sizes muddy the water for shoppers.

What is the size of a standard double duvet?

Standard double duvet dimensions

A standard double duvet measures 200 x 200 cm across the UK and Ireland. This square shape is a deliberate design: it provides even coverage on a rectangular 135 x 190 cm double mattress, with roughly 5 cm of overhang on each side and 10 cm at the foot. Retailers including Soak&Sleep (UK bedding specialist) and Shaws Ireland (Irish homeware retailer) both confirm this as the standard. In imperial terms, that’s 79 x 79 inches, as noted by Penneys IE (high-street bedding guide).

Double bed mattress dimensions

A standard UK and Irish double mattress is 135 cm wide and 190 cm long. The difference between the square duvet and the rectangular mattress is deliberate: the extra width and length at the foot ensure the duvet doesn’t pull tight when two people share it. scooms (bed linen retailer) and The Bed Consultant (bedding advice site) both list the same mattress dimensions. For a small double bed (120 x 190 cm), a double duvet still works but with more overhang — The English Home (interiors guide) notes this as a common fitting.

The pattern: double duvets are square because they need to cover two sleepers evenly; double mattresses are rectangle because humans are taller than wide. The two dimensions serve different purposes.

What duvet sizes are available for different bed types?

Single duvet size in cm

In Ireland, the standard single duvet measures 140 x 200 cm — wider and longer than the UK single (often 135 x 200 cm). Guineys (Irish bedding retailer) confirms this as the standard for Irish single beds. A single mattress is typically 90 x 190 cm, leaving generous overhang. Soak&Sleep notes that a double duvet (200 x 200) can also serve as a cosy oversized option for a single bed.

King duvet size in cm

The king duvet is 230 x 220 cm across both UK and Ireland markets. Shaws Ireland and DUSK (UK homeware brand) both list this dimension. A king mattress is typically 150 x 200 cm, giving the duvet a 40 cm overhang on each side and 10 cm at the foot — ample for two sleepers. Some retailers, including scooms, also mention 200 x 230 cm as a “long double” or “small king” size used on king beds.

Super king duvet size in cm

The super king duvet is 260 x 220 cm, fitting a 180 x 200 cm super king mattress. Shaws Ireland and Victoria Linen (UK bedding guide) both confirm this as the standard. The 220 cm length matches the king, while the extra 30 cm width covers the wider mattress. The English Home notes that a super king duvet effectively splits coverage for two sleepers who each take a side.

Comparison of duvet sizes to bed sizes

• Single duvet (140 x 200 cm) → single bed (90 x 190 cm): 25 cm overhang each side, 10 cm foot
• Double duvet (200 x 200 cm) → double bed (135 x 190 cm): ~5 cm each side, 10 cm foot
• King duvet (230 x 220 cm) → king bed (150 x 200 cm): 40 cm each side, 10 cm foot
• Super king duvet (260 x 220 cm) → super king bed (180 x 200 cm): 40 cm each side, 10 cm foot
• 200 x 230 cm (non-standard) → king bed (150 x 200 cm): less width overhang, longer length
• 240 x 220 cm (non-standard) → super king bed (180 x 200 cm) or queen bed in other markets

Is 200×200 cm a double duvet?

Is 200×200 cm double duvet in Ireland?

Yes. Irish bedding retailers consistently list 200 x 200 cm as the standard double duvet. Shaws Ireland (Irish bedding specialist) states the double duvet measures 200 x 200 cm. Guineys (Irish home store) echoes the same dimension in its bedding buying guide. The fit on a standard 135 x 190 cm double mattress is consistent across the island.

Is 200×200 cm double duvet in the UK?

Yes. UK retailers including Soak&Sleep (UK bedding specialist), The English Home (interiors guide), and Sleepseeker (bedding advice site) all define the double duvet as 200 x 200 cm. The standard applies whether you’re shopping in London, Manchester, or Edinburgh.

The pattern: both markets use an identical double duvet dimension. The only divergence in single duvet sizing — Ireland’s 140 x 200 cm versus the UK’s more variable 135 x 200 cm — doesn’t affect double buyers.

What size bed is 200×200 cm?

200×200 cm bed size name

A 200 x 200 cm mattress is not a standard size in the UK or Ireland. Unlike the square duvet, mattresses in these markets are rectangular — 135 x 190 cm for double, 150 x 200 cm for king, 180 x 200 cm for super king. A 200 x 200 cm bed is sometimes called a “continental double” or “square double” in European markets, but The Bed Consultant (bedding sizing resource) notes it’s rare outside continental Europe. If you encounter a 200 x 200 cm mattress, it likely came from a European manufacturer.

200×200 cm bed dimensions

The square shape means a 200 x 200 cm mattress equals 79 x 79 inches. By comparison, a UK/Ireland king mattress is 150 x 200 cm (59 x 79 inches) and a super king is 180 x 200 cm (71 x 79 inches). A 200 x 200 cm mattress would need a duvet larger than standard double — probably a king or super king — to avoid overhang being too tight on two sides.

The implication: if you see “200 x 200” on a duvet pack, it’s the duvet, not the bed. Double-check the label for “duvet” vs. “mattress” — they’re not the same product.

What size duvet is 240×220?

240×220 duvet bed size fit

A 240 x 220 cm duvet is larger than standard king (230 x 220 cm) and narrower than super king (260 x 220 cm). It’s not a standard size in the UK or Ireland. It typically fits a super king mattress (180 x 200 cm) with 30 cm overhang per side, or a queen-size mattress (160 x 200 cm) common in other countries but rare in the UK/Ireland. Victoria Linen (UK bedding guide) confirms that 240 x 220 cm sits outside the three-standard system.

Is 240×220 a queen?

Not in the UK or Ireland. Queen-size is not a standard term here — the progression goes double → king → super king. In Australia and parts of Europe, a queen duvet is around 210 x 210 cm, while 240 x 220 cm is closer to a “super king” or “extra-large king” in those markets. For UK/Ireland shoppers, a 240 x 220 cm duvet requires a custom duvet cover or a cover labelled “240 x 220” specifically.

The trade-off: buying a non-standard duvet like 240 x 220 cm means limited cover options and potential returns if the fit on your bed is wrong. For buyers in the UK and Ireland, the safest purchase is always a standard size — double 200 x 200, king 230 x 220, or super king 260 x 220.

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