What is a small double?#

The UK small double (also called a three-quarter or queen in some older contexts) measures 120 × 190 cm, 30 cm wider than a single and 15 cm narrower than a standard double. It's a versatile size that's particularly popular for:

  • Guest rooms where a double would dominate the space
  • Younger adults who want more space than a single without a full double
  • Couples in smaller rooms where a standard double leaves insufficient bedroom furniture space
  • Studio flats and smaller second bedrooms

The small double vs standard double trade-off#

At 120 cm, a small double gives each of two partners 60 cm of sleeping width, 7.5 cm less per person than a standard double. For occasional use (guest room) this is perfectly acceptable. For two adults sleeping regularly, the standard double or king is the better investment. Solo adults will find a small double spacious and comfortable.

Availability note#

Not all mattress brands offer small double as a standard size. Emma, Silentnight and Simba include it in their range; some brands (including some premium options) jump from single directly to double. Verify availability before choosing your brand.

Best small double picks#

Best value small double: Emma Original. Emma includes small double in their standard range at proportionally lower pricing than their double. The same 200-night trial and 10-year guarantee apply.

Best pocket-sprung small double: Silentnight range. Silentnight's small double options are widely available through UK retailers at good prices, particularly useful if you prefer buying from a physical store.

Best for guest rooms: budget foam mattress. For a guest room used 20–40 nights per year, an entry-level foam mattress (under £200) is appropriate. Spending £400+ on a mattress used infrequently has diminishing returns.

Measure the room, not just the bed#

A small double is chosen for space, so the numbers that matter are the ones around the bed rather than the bed itself. Allow at least 60 cm of clear floor on any side you need to walk down, and around 75 cm in front of a wardrobe or chest of drawers so the doors and drawers open fully. A 120 cm bed that leaves a 45 cm corridor has not really solved the problem it was bought to solve.

Check the door swing as well. In small second bedrooms, the bedroom door frequently opens into exactly the space the bed wants, and the choice between a small double and a standard double is decided by the door rather than by comfort.

Bedding and bases at 120 cm#

This is the practical catch with the size, and it is worth knowing before you buy rather than afterwards. Small double bedding exists but the range is much narrower than for singles, doubles and kings - fitted sheets in particular. Expect fewer colours, fewer sales, and more ordering online. A standard double fitted sheet will not stay on a small double properly; it bunches under the mattress and pulls off the corners.

Bed frames and divan bases in 120 cm are similarly available but less widely stocked. If you are buying frame and mattress together, confirm both in the size before ordering either.

Who it is genuinely the right answer for#

  • A solo adult in a small room. This is the case where a small double is unambiguously good: a great deal more room than a single, and it leaves the floor space a single bedroom needs.
  • A guest room in regular use. Comfortable for one guest, workable for two occasionally, and it keeps the room usable for anything else.
  • A teenager's room. Longer-lived than a single, and the bedding cost is the only real downside.

It is the wrong answer for two adults sleeping together every night. At 60 cm each you have roughly the width of a single bed per person, and the mattress becomes the limiting factor in both people's sleep. If the room can take it, our UK mattress sizes guide sets out what you gain by going up a size.

Frequently asked questions#

What size is a UK small double?#

120 × 190 cm, sometimes sold as a three-quarter bed. It is 30 cm wider than a UK single and 15 cm narrower than a UK double, and the length is the same as both.

Will standard double bedding fit a small double?#

No. A double fitted sheet is cut for 135 cm and will not grip a 120 cm mattress; it rides up and comes off the corners. Duvets are more forgiving, since a double duvet simply overhangs, but fitted sheets and mattress protectors need to be the correct size.

Is a small double big enough for two people?#

For occasional use, yes. For two adults every night, it gives each person about the width of a single bed, which most couples find restrictive over time - particularly if either of you moves in your sleep.

Do all brands make a small double?#

No, and it is the size most often missing from a range, especially at the premium end. Confirm the size is available in the specific model you want before settling on a brand, rather than assuming it follows from the rest of the size range.