How Long Is a Double Bed in cm?

The Figure You Need

A standard UK double bed mattress is 190cm long and 135cm wide, which is 6ft 3in by 4ft 6in. The frame is longer than the mattress, generally between 195cm and 205cm depending on how thick the headboard is and whether the design includes a footboard.

A small double, sometimes called a three quarter bed, is 120cm wide by the same 190cm length. So both double sizes share an identical length: only the width changes.

Why Frame Length and Mattress Length Differ

Mattress dimensions describe the sleeping surface. Frame dimensions describe the object that goes in your room. The gap between them is created by the headboard thickness, the frame border and any footboard.

A slim wooden frame with a thin slatted headboard might add only 5cm to the overall length. A deeply upholstered frame with a padded headboard and a matching footboard can add 15cm or more. When you are checking whether a bed fits between a wall and a chimney breast, the frame figure is the one that decides it.

Length Across the UK Range

This is the detail worth remembering. UK single, small double and standard double mattresses are all 190cm long. King and super king mattresses are 200cm long. Emperor sizes are usually 200cm, with some extended variants at 220cm.

The consequence is direct: if you find a double bed too short, moving to a small double or a single changes nothing, and going up to a king gains only 10cm. For sleepers over about 6ft 2in, a long single at 200cm or a king size is the practical route to genuine extra legroom.

How Length Feels in Practice

Comfortable length is not simply your height. A pillow occupies 15cm to 20cm at the head end once compressed, and most people do not sleep perfectly straight. As a rough guide, aim for a mattress at least 10cm to 15cm longer than the taller sleeper.

At 190cm, a double suits anyone up to around 5ft 10in comfortably, and works for taller people who sleep curled rather than extended. Beyond about 6ft, the feeling of running out of bed becomes noticeable, particularly with a firm tucked in sheet pulling across the toes.

Fitting a Double Bed into a UK Bedroom

Work from the external frame size, then add clearance. Allow around 60cm of walkway on each side you intend to use and 70cm at the foot if you need to cross. A double is comfortable in a bedroom from roughly 2.8m by 3.2m upwards.

In tighter rooms, placing one long side against a wall works for a single sleeper but becomes awkward for two, since one person has to climb across. Under a window, check the radiator position: a bed pushed against a radiator both blocks the heat and dries the mattress edge unevenly.

In a room with a bay window or a chimney breast, the length figure becomes critical. Measure the available run at floor level and at mattress height, since skirting boards and reveals change the usable dimension at different heights.

Bedding and Mattress Practicalities

Double bedding is the most widely available size in Britain, so choice is not a constraint. What does need checking is mattress depth against fitted sheet pocket depth. Hybrid and pocket sprung mattresses can exceed 30cm, and a sheet cut for a 25cm mattress will not stay on the corners.

Duvet width should match the bed. A double duvet on a double bed gives sensible overhang on each side. Stretching a single duvet across a double is the usual reason one sleeper wakes uncovered.

Rotating a double mattress is manageable for two people and should be done regularly according to the maker’s guidance. Many modern mattresses are single sided and should be rotated head to foot rather than flipped.

Choosing a Double Bed Frame

In a typical British bedroom, the frame you choose changes the perceived size of the room more than the mattress does. Low profile frames with slim headboards keep sight lines open. Tall headboards give a room a focal point but need wall height to carry it.

Fabric frames add softness and help with acoustics in rooms with hard flooring. Our double fabric beds UK sale selection covers both low and tall headboard designs. Wooden frames read more structural and suit natural material schemes: our modern wooden beds UK sale range includes pale and darker finishes.

Storage frames deserve serious consideration in a double bedroom, because the area under a 135cm by 190cm mattress is substantial. Ottoman lift bases and drawer designs turn that into usable capacity, which often removes the need for an extra chest.

Furnishing Around a Double Bed

With a double in place, there is usually room for proper bedside furniture. Cabinets around 45cm to 50cm wide sit in good proportion beside a 135cm bed, and keeping the top surface near mattress height makes it genuinely useful. Our high gloss bedside cabinets UK sale range reflects light, which helps in a smaller room.

Storage is the other half of the plan. A wardrobe with hinged doors needs its swing arc clear of the bed, so measure the arc as well as the footprint. Where that does not work, sliding designs remove the problem entirely. Browse our modern bedroom furniture UK sale range to plan the bed, cabinets and wardrobe together rather than in isolation. You can shop modern furniture UK with free delivery to most UK mainland postcodes at Furniture in Fashion.

Why 190cm Trips People Up

The 190cm length is shared by small singles, singles, small doubles and standard doubles. That single fact explains most of the disappointment people feel after upgrading. Someone who moves from a single to a double expecting more room for their legs gains nothing at all, because both mattresses are the same length.

For a sleeper of 175cm, 190cm is comfortable. At 180cm the margin is thin once a pillow is in place. Above 185cm a double is genuinely short, and the usual symptoms are feet at the very end of the mattress or pressed against a footboard. The only remedy within UK sizing is to move up to king size at 200cm, which adds width as well as length.

This is worth planning for in a child’s or teenager’s room. A bed bought at eight years old may still be adequate in width at seventeen while being clearly too short, and length cannot be added later.

Frame Length Versus Mattress Length

The 190cm figure describes the mattress. The space the bed needs is always more. A slim wooden frame with a simple headboard typically measures 195cm to 200cm externally. Add a thick upholstered headboard and it moves to around 200cm. Add a footboard and 205cm to 210cm is common.

That difference decides whether a bed fits between two fixed points, and alcoves are where it matters most. A recess beside a chimney breast measuring 200cm will take a 190cm mattress on a slim frame but will not take the same mattress on a frame with a padded headboard and footboard. Measure the recess at floor level and at mattress height, since skirting boards reduce the usable width lower down.

Always ask for the external dimensions rather than working from the size name. Two beds described identically as doubles can differ by 15cm in overall length, and in a small room that is the difference between a door opening and not.

Fitting a Double Into a Small Bedroom

A double needs roughly 2.4m by 2.7m of internal floor space to work comfortably with a walkway on one side and clearance at the foot. Below that it can still be done, but the layout has to be deliberate.

The most effective move is to accept access from one side only and push the other long edge against a wall. This suits a single occupant well and is common in box rooms, though it makes changing the bedding more awkward and is not ideal for two people. Where two people share, keep both sides clear even if that means losing a chest of drawers.

Beyond that, reduce the frame rather than the mattress. Dropping the footboard recovers 10cm to 15cm of length. Choosing a low profile headboard around 70cm high keeps the wall visually open. Wall mounted bedside shelves replace cabinets and give back floor at each side.

Storage has to work within the bed’s own footprint in a room this size. Ottoman bases lift the mattress on a gas strut and give one large cavity, needing clearance in front to open. Drawer divans need pull out space at the side or the foot. Check which the layout allows before ordering, because an ottoman against a wall with a radiator in front of it is a frustrating discovery after delivery.

Frequently Asked Questions