An emperor bed usually measures 200cm wide by 200cm long, which is 6ft 6in square. Some manufacturers produce variants at 180cm by 220cm for taller sleepers, and a smaller number offer sizes up to 215cm wide. Unlike single, double, king and super king, emperor is not a fully standardised UK size, so the dimensions must be confirmed against the specific bed rather than assumed from the name.
For context, an emperor at 200cm wide is 20cm wider than a super king at 180cm and 50cm wider than a king at 150cm. Length is generally the same 200cm as both, unless you choose one of the extended variants.
Standardisation in UK bed sizing covers the sizes most homes buy. Emperor sits above that, produced in smaller volumes for larger rooms, and different makers have settled on different dimensions. One might build a 200cm square bed, another a 202cm by 200cm, another a 180cm by 220cm.
The practical consequence falls on bedding. Emperor sheets and duvets are a specialist purchase, and a set made for a 200cm square mattress will not fit a 180cm by 220cm one. Always buy bedding to your mattress measurements, and expect a narrower choice of colours and materials than in standard sizes.
The obvious benefit is width. At 200cm across, two sleepers have a metre each, which is more than the width of a standard single bed per person. Movement on one side is genuinely undetectable on the other, which is why these beds appeal to couples with very different sleeping patterns.
The square proportion also changes how the bed sits in a room. A 200cm by 200cm bed reads as a deliberate architectural block rather than a rectangle, and in a large room with high ceilings that proportion can look considered rather than oversized. In a room that is only just large enough, the same squareness can feel unresolved.
Length is the point to check carefully. At 200cm long, an emperor is no longer than a king or super king. If legroom rather than width is the issue, a 220cm extended variant is the size to look for, not a standard emperor.
This is where emperor beds demand honesty about space. Adding walkways of 70cm on each side and at the foot to a 200cm square bed means a clear floor area of around 3.4m by 2.7m before any other furniture. In practice, a bedroom of about 4m by 4m is where an emperor stops feeling like a squeeze.
Frames add further width. A padded upholstered emperor frame can measure 215cm or more externally, so working from the mattress size alone will mislead you. Measure the room at floor level and note every projection: radiators, chimney breasts, boxed pipes and window reveals.
Access is the other constraint, and it is the one that catches people out after purchase. An emperor mattress is very large, does not fold, and will not negotiate a tight stair turn or a narrow landing. Measure the full delivery route including door widths, ceiling height on the stairs and the diagonal of any turn. Frames arrive flat packed and assemble in the room, but a single piece mattress cannot be reduced.
At this scale, frame design carries a lot of visual weight. A tall panelled or winged headboard suits a room with high ceilings and gives the bed the presence its footprint implies. A low profile frame is the better option under a sloping ceiling or beneath a window, since a tall headboard in a low room feels heavy.
Material affects perceived size. Pale wood and light fabric keep a very large bed feeling calm, while dark leather or deep velvet emphasises its mass, which can be the intention in a generously proportioned room. Our super king size beds UK sale selection is worth reviewing alongside emperor options, since a super king often achieves the same feeling of space with fewer practical complications.
Support matters more at this width. A 200cm span needs a robust centre rail with multiple legs, and slats should be closely spaced. Without that, the middle of the mattress will settle over time.
A bed this size sets the scale for everything else. Bedside cabinets that would look right beside a double will look undersized here, so slightly larger units with a taller profile hold the composition together. Our modern bedside cabinets UK sale range covers a spread of heights and widths to suit.
Rugs need generous sizing too. A rug that disappears entirely under the bed does nothing, so aim for one that extends at least 60cm beyond the sides. Our modern rugs UK sale selection includes larger formats suited to rooms of this scale.
Storage should go to the walls and upward, leaving the floor clear. A tall wardrobe or a run of sliding doors keeps the plan simple, and a bench at the foot of the bed gives somewhere to sit without adding a chair. If you want a coordinated scheme across a large bedroom, our modern bedroom collections UK sale range keeps finishes aligned. You can shop modern furniture UK with free delivery to most UK mainland postcodes at Furniture in Fashion.
The practical cost of an emperor bed is bedding, and it is worth understanding before ordering the frame. Because emperor sizing is not a British standard, high street shops do not stock fitted sheets or mattress protectors for it. Everything has to be bought from specialists or made to measure.
Fitted sheets are the strict item. They must match the mattress dimensions and depth, because there is no give in a cut and sewn corner. Order them at the same time as the mattress, using the manufacturer’s exact figures rather than the size name, and buy at least two sets so the bed is never out of action on laundry day.
Duvets are more forgiving, since drop can be adjusted by choosing a larger size. A super king duvet at 260cm by 220cm covers a 200cm wide mattress with a modest overhang, while a dedicated emperor duvet gives fuller drop on both sides. Where two sleepers disagree about warmth, two separate super king duvets side by side is a workable and increasingly popular arrangement at this width.
Budget for the running cost as well as the purchase. Specialist bedding sits above standard pricing, and a bed this wide gets through more of it.
An emperor bed needs a room that can absorb it without the bed becoming the only thing in it. As a working minimum, a 200cm wide frame with 70cm walkways on both sides needs about 3.4m of internal width, and that is before allowing for a wardrobe on a side wall.
Ceiling height matters more than at smaller sizes, because a very wide bed in a room with a 2.3m ceiling can look compressed. Rooms with 2.6m or more carry the proportions far better, which is part of why emperor beds sit naturally in period properties and larger new build master suites.
Think about what else the room has to hold. If a wardrobe, a chest of drawers and a chair all need to fit, the required width climbs quickly, and a sliding door wardrobe becomes close to essential since hinged doors need 60cm of swing that the bed will be competing for. Where a dressing room or built in storage sits elsewhere, the bedroom can be given over to the bed and very little else, which is when an emperor works best.
This is the point at which large beds most often go wrong. An emperor mattress cannot be folded, and a 200cm wide mattress will not negotiate an average staircase in one piece. Measure the full route before ordering: door widths, hallway pinch points, stair width, the ceiling above the stairs, and the diagonal clearance at every turn and half landing.
Where the route defeats the mattress, zip and link is the answer. Two 100cm halves joined along the long edge behave like standard singles for delivery purposes and assemble into a full emperor surface in the room. The seam sits down the centre, which suits couples who sleep to their own sides, and it allows different firmness on each half.
Frames arrive flat packed and are assembled in position, but they need floor space to build. Clear the room first, dismantle the old bed in advance, and arrange removal of the old mattress for the same day, since there is rarely anywhere in a house to store a mattress this size temporarily. Two people are needed for assembly, and slatted bases at this width usually include a central support leg that must be fitted for the warranty to stand.
Most emperor beds are 200cm wide by 200cm long. Some makers offer 180cm by 220cm or wider variants, so check the specific mattress size.
Yes. An emperor at 200cm wide is 20cm wider than a super king at 180cm. Both are usually 200cm long.
Around 4m by 4m to feel comfortable, allowing walkways of roughly 70cm on each side and at the foot before other furniture.
It is available but the choice is narrower than for standard sizes, and it must be matched to your exact mattress dimensions since emperor sizing varies.
Measure first. Emperor mattresses are very large and do not fold, so check door widths, landing space and the diagonal clearance on any stair turn.
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