A small single bed in the UK measures 2ft 6in by 6ft 3in, which is 75cm wide by 190cm long. It is 15cm narrower than a standard single, which measures 90cm by 190cm, and the length is identical. That narrow width is the whole point: a small single fits rooms and alcoves where a standard single simply will not go.
You will also see the size described as a two foot six, a narrow single, or a cot bed size in some contexts. All refer to the same 75cm by 190cm mattress. Because the length matches a standard single, bedding is often easier to source than people expect, though the fitted sheet must be bought in the correct width.
The mattress is 75cm by 190cm. The bed frame around it will be larger, and by how much depends entirely on the design. A slim metal or wooden frame typically adds 5cm to 8cm in total width. An upholstered frame with padded side rails can add 15cm or more, taking the overall width close to 90cm and undoing much of the advantage of choosing a small single in the first place.
Height varies more than width. A low platform frame might put the mattress top around 30cm from the floor, while a frame designed to take a deeper mattress or a storage drawer could sit at 50cm or higher. In a room with a sloped ceiling, that difference decides whether you can sit up in bed comfortably.
Headboard depth is the measurement most often overlooked. A padded headboard can add 8cm to 12cm to the total length of the bed, which matters when you are fitting a 190cm mattress into a 200cm alcove.
The classic use is the UK box room: the third bedroom in a terraced or semi detached house, often around 2m by 2.4m, frequently with a bulkhead over the stairs. A standard single at 90cm wide can leave a walkway too narrow to open a wardrobe door. Dropping to 75cm recovers that 15cm and often makes the difference between a room that works and one that does not.
Small singles also suit loft conversions where the ceiling slopes to meet the floor, since the narrower mattress can be pushed further into the low section. They work in shared children’s rooms where two beds need to sit along one wall, in study bedrooms where a desk has to share the space, and in guest rooms that double as a home office.
Attic and eaves rooms deserve particular thought. Measure the ceiling height at the exact point where the pillow will sit, not just in the middle of the room. A low frame paired with a small single mattress often unlocks a space that felt unusable.
Set against the rest of the UK range, a small single is the narrowest option in general use. A standard single is 90cm by 190cm and gives noticeably more turning room for an adult. A small double, sometimes called a four foot, is 120cm by 190cm and suits a single adult who likes space or two people at a push. A standard double is 135cm by 190cm, a king is 150cm by 200cm, and a super king is 180cm by 200cm.
The important point is the length step. Everything up to a double is 190cm long, while king and super king sizes jump to 200cm. A taller teenager may outgrow the length of a small single before they outgrow its width, so if the bed needs to last, check the sleeper’s height against 190cm rather than assuming width is the only constraint.
If a small single feels too tight but a standard double is out of the question, the intermediate sizes are worth a look. Our small double fabric beds UK sale sit neatly between the two and often fit rooms that cannot take a full double.
In a small single, the frame design matters more than in any other size, because every centimetre of added bulk is proportionally larger. A few principles help.
Keep the side rails slim. A frame with thin timber or metal rails preserves the narrow footprint, whereas heavily upholstered sides eat into it. If you want fabric, choose a design with a padded headboard and simple rails rather than padding all round.
Consider a raised frame in a room with no wardrobe space, so storage boxes can slide underneath. Alternatively, a low frame makes a small room feel calmer and taller, which is often the better choice when the ceiling is the constraint rather than the floor.
Metal frames are worth considering here. A slim metal frame occupies very little visual space, letting light travel through it and making a narrow room feel less crowded. Our single metal beds UK sale include several designs with a light profile that suits tight rooms, and the same applies to simple wooden designs among our single wooden beds UK sale.
Whatever the material, check that the frame has adequate slat support. Even a narrow bed benefits from correctly spaced slats, and a gap of more than about 8cm allows a foam mattress to dip between them.
Small single mattresses are available in foam, pocket sprung, open coil, and hybrid constructions, so you are not limited to basic options by choosing a narrow size. Depth is worth thinking about: a very deep mattress on a narrow base can look top heavy and makes fitted sheets harder to tuck. A depth of around 18cm to 24cm usually sits well on a small single frame.
For bedding, buy fitted sheets in the small single or 2ft 6in size specifically. A standard single fitted sheet will be loose and will not stay in place. Duvets are more forgiving, since a single duvet at 135cm by 200cm works perfectly well on a small single bed and gives a generous drape at the sides. Pillows are standard size, so nothing changes there.
Mattress protectors follow the same rule as sheets: buy them in the correct width or they will ruck up. It is a small detail that makes a noticeable difference to how well the bed stays made.
A small single frees up floor space, but the room still needs planning. Keep a walkway of at least 50cm along the open side of the bed, and more if a wardrobe or drawer opens onto it. Place the bed so it does not block the swing of the door.
Use vertical space rather than floor space. Wall shelves above the headboard, a tall narrow wardrobe instead of a wide one, and hooks on the back of the door all keep the floor clear. Where a full bedside cabinet will not fit, a wall mounted shelf or one of the slimmer options among our bedside cabinets UK sale gives somewhere for a lamp and a glass of water without stealing walkway.
Light colours and a single mirror help a narrow room read as larger. Keep the bedding tonal rather than heavily patterned, since large patterns shrink small spaces visually. For a whole room approach, our childrens furniture UK sale collections include coordinated pieces scaled for smaller bedrooms. You can shop modern furniture for every room at Furniture in Fashion, with free delivery to most UK mainland postcodes.
A small single mattress is 75cm wide by 190cm long, which is 2ft 6in by 6ft 3in.
Not always. Some cot beds convert to a mattress close to small single width, but sizes vary by manufacturer. Check the exact measurements before buying bedding.
Yes, for many people. The length matches a standard single, so height is rarely the issue. The 75cm width is narrower for turning, which suits guests and shorter stays better than nightly long term use for a broader adult.
A single duvet works well, but fitted sheets must be bought in the small single or 2ft 6in size. A standard single sheet will not grip the narrower mattress.
Allow at least 50cm along the side you use, and more where a wardrobe or drawer opens onto the walkway. Also check the headboard depth against the length of your alcove.
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