Single Bed Size in CM: Ireland Standards & Dimensions

Anyone who’s shopped for a bed in Ireland and ended up confused by the numbers has good company—there’s a persistent gap between what shoppers expect, what retailers stock, and what actually fits. The most common single bed size in Ireland measures 90 cm × 190 cm, but regional variations and terminology differences make it surprisingly easy to order the wrong mattress. This guide breaks down exactly what a single bed measures in centimetres, how Ireland’s standard compares to the UK and continental Europe, and what shoppers should watch for when matching mattress to frame.

Irish Single Bed: 90 x 190 cm · Small Double: 120 x 190 cm · Standard Double: 135 x 190 cm · King Bed: 150 x 200 cm · Single Duvet: 135 x 200 cm

What size is a single bed in Ireland?

The standard Irish single bed measures 90 cm wide by 190 cm long — commonly expressed as 3 feet by 6 feet 3 inches. This is the size most Irish retailers list as “single” or “3ft,” and it’s what you get when you buy a standard single mattress without special ordering. The width figure holds firm across IKEA Ireland, Des Kelly, Guineys, and most other Irish furniture retailers, making it one of the most consistent measurements in home furnishings.

Standard dimensions in cm

Three numbers matter for single bed buyers: the width (90 cm), the length (190 cm), and the clearance height if buying a divan or bed frame. The 190 cm length is shorter than the standard 200 cm found on most European and US beds, which means Irish mattresses won’t swap cleanly with imported frames without checking first. A mattress marketed as “90 × 200 cm” is technically a junior or EU-size, not the standard Irish single.

Comparison to feet

Converting to imperial units: 90 cm equals roughly 35.4 inches, commonly rounded to 36 inches or 3 feet. The 190 cm length converts to approximately 74.8 inches, which retailers round to 75 inches or 6 feet 3 inches. This means a “36 × 75 inch” mattress in US sizing is actually a twin at 38.5 × 74.5 inches — the US twin is wider than the Irish single. Ireland and the UK share the same length (75 inches) but differ slightly on width, with UK mattresses at 91 cm versus Ireland’s 90 cm.

What is a single bed size in cm?

The definitive answer is 90 cm × 190 cm for the Irish market. This measurement appears in IKEA Ireland’s official mattress guide, Des Kelly’s sizing guide, and Guineys product listings. Wikipedia notes that UK and Irish singles are traditionally quoted at 36 inches wide (91 cm), while some retailers round that to 90 cm — the difference is marginal in practice, but worth knowing when mixing UK-sourced and Irish-sourced bedding.

Irish standard

Irish single beds are designed for one person and typically fit children from roughly age 6 through to teenagers and adults. The 90 cm width gives enough room for a child to spread out or an adult to sleep comfortably in a compact bedroom. The 190 cm length accommodates most adults up to about 180–185 cm tall, though taller sleepers may find their feet brushing the mattress edge. The compact footprint makes standard single mattresses ideal for studio apartments, children’s bedrooms, and guest rooms where space is at a premium.

International variations

Single bed sizes vary more than most shoppers expect. The US twin measures 98 cm × 189 cm — wider than the Irish single but 1 cm shorter. The UK standard single is 91 cm wide, making it 1 cm wider than Ireland’s 90 cm. Continental Europe avoids the imperial naming confusion altogether and lists beds by exact centimetre dimensions: a “90 × 200 cm” bed is explicit, while some countries also offer an 80 cm narrow option. France, for instance, offers 90 × 190 cm or 90 × 200 cm options, with the extra 10 cm length becoming increasingly common.

Is 90×200cm a single bed?

Strictly speaking, no — a 90 × 200 cm mattress is technically a junior or EU-length single, not the standard Irish single. The extra 10 cm in length (compared to Ireland’s standard 190 cm) brings the mattress in line with continental European sizing, where 200 cm is the norm rather than the exception. In practice, many Irish retailers now stock 90 × 200 cm mattresses under the “single” label, blurring the distinction.

Length differences

The 10 cm length difference between the standard Irish single (190 cm) and the EU-style single (200 cm) is meaningful for taller sleepers. At roughly 4 inches longer, a 200 cm mattress gives someone around 185–190 cm tall enough clearance to sleep comfortably without feet hanging off the edge. The extra length also helps with deeper sheets on pillow-top or memory foam mattresses, where standard fitted sheets can be too short. IKEA Ireland lists a junior mattress at exactly 90 × 200 cm, which suggests 200 cm lengths are readily available even from mainstream retailers.

Common in EU

The continental European preference for 200 cm lengths reflects a general approach of using metric dimensions without imperial rounding. Beds are often listed as “80 cm bed” or “90 × 200 cm bed” rather than by name, which eliminates confusion once you know the numbers. Most EU countries — France, Germany, the Netherlands — offer single beds in the 90 cm width range but default to 200 cm lengths. Irish buyers ordering frames from EU retailers or using imported bedding should verify the exact centimetre dimensions before purchase, as a “standard single” mattress ordered from a continental supplier may arrive 10 cm longer than expected.

Is 120×200 a single bed?

No — a 120 × 200 cm bed falls into the “small double” or “three-quarter” category, not single. At 120 cm wide, it offers about 30 cm more width than a standard single, making it wide enough for a child sharing with a parent, a teenager who has outgrown a single, or a single adult who prefers more room. The small double is popular in Ireland but less common than in the UK, where the “three-quarter” size has stronger market presence.

Small double classification

Irish retailers typically list small doubles at 120 × 190 cm, matching the UK standard of 120 × 190 cm for this size. The 200 cm length variant reflects the same EU-length trend seen in single beds, giving sleepers that extra centimetre margin. At 120 cm wide, a small double is genuinely comfortable for one person who wants more space than a standard single offers, or marginally usable for two people in a tight bedroom — though two adults would likely find it too narrow for comfortable long-term shared sleeping.

Fit for two?

A small double at 120 cm wide provides roughly 60 cm per person when shared — comparable to a standard single width per person. This is tight for two adults but workable for a child and parent or a couple in a very small room where a standard double won’t fit. The practical trade-off is between floor space savings and sleep comfort: two adults in a small double will likely experience disturbed sleep from sharing that narrow width. The better question is whether you have room for a standard double (135 cm) before settling for a small double as a compromise.

Are there two sizes of single beds?

Yes — in practice, two main single bed sizes are commonly available in Ireland: the standard single (90 × 190 cm) and the small single (75 × 190 cm). Beyond those, the junior or EU-length variant (90 × 200 cm) is increasingly available, and UK-sourced products sometimes list 91 cm width for a “standard single.” The naming isn’t regulated, so retailers can use “single,” “3ft,” or other terms that don’t always map cleanly to the exact dimensions.

Regional variations

The small single (75 cm wide) serves a specific niche: very tight spaces where a standard single won’t fit, day beds, or very young children who don’t need full width. It’s narrower than the standard single by a clear 15 cm, which translates to about 6 inches of lost sleeping space. Most Irish adults wouldn’t consider a small single unless space constraints are severe. The standard single (90 cm wide) is what most people mean when they say “single bed” — it’s wide enough for comfortable solo adult sleep, narrow enough to fit in most standard bedrooms.

90 cm vs others

At 90 cm wide, the standard Irish single sits between the continental European small single (80 cm) and the large single (100 cm). The continental sizing is more granular, offering extra-narrow and wide-single options that the Irish market doesn’t typically stock. The UK market offers a 91 cm width for standard singles — 1 cm wider than Ireland’s 90 cm — which means UK-fitted sheets may be marginally loose on Irish mattresses. In practice, most Irish shoppers buying from Irish retailers won’t notice the difference, but it’s a detail worth noting when ordering bedding online from UK suppliers.

Ireland bed size terminology guide

Irish bed naming follows a simplified version of UK conventions, with a few quirks worth knowing. What the US calls “twin,” Ireland and the UK call “single.” What the US calls “full,” Ireland and the UK call “double.” The queen size exists in the Irish market but is often closer in dimensions to an Irish king size, causing confusion when comparing to US products. Terminology also varies by retailer: some list “3ft” beds, others say “single,” and a few use imperial markings like “36 × 75 inches.”

Buying single bed sheets and duvets in Ireland

Matching bedding to a single mattress involves checking three measurements: mattress width, length, and depth. A standard Irish single mattress at 90 × 190 cm needs sheets sized for those exact dimensions. Standard single duvets are typically 135 × 200 cm in Ireland — wider than the mattress, which is intentional for overhang and comfort. Standard single pillowcases run 50 × 75 cm, though some retailers sell 50 × 90 cm pillowcases that work better for larger pillows.

For Irish shoppers, the standard single bed size of 90 × 190 cm is well-established and consistently stocked across retailers. The complication comes from regional variations: 200 cm length options are increasingly common, UK sizing is 1 cm wider, and US twin sizing is significantly wider but slightly shorter. The practical move is straightforward — measure your mattress or frame in centimetres before ordering bedding, and verify the exact listed dimensions on any imported product. For taller sleepers or anyone buying imported bedroom furniture, the 90 × 200 cm junior size offers a straightforward solution that major retailers like IKEA now stock regularly.