Single Mattress Size: Dimensions & Who It Suits (2026)

The single is the bed most of us grew up with, and it is still the workhorse of Singapore bedrooms. It is the smallest standard size you can buy, which is exactly its appeal: it fits where nothing bigger will, costs the least, and is light enough for one person to shift on their own. Knowing its precise measurements helps you decide whether it is the right call or whether you should size up.

Exact single mattress dimensions

A single mattress in Singapore measures about 91 x 190 cm, or roughly 36 x 75 inches. As with other local sizes, the standard length is 190 cm, though a few ranges offer a longer 198 or 200 cm version for taller sleepers.

This makes the single the narrowest of the common sizes. It is about 16 cm slimmer than a super single and a full 61 cm slimmer than a Queen, while keeping the same length as both.

These numbers describe the mattress only. A bed frame adds width and length depending on its style, so measure your room against the frame’s external size, not the mattress.

The easiest size to fit and move

The single’s biggest practical strength is how little space and effort it demands. Because it is narrow and light, one person can carry, tilt through a doorway or reposition it without help — something you cannot say for a Queen or King. That makes it perfect for rooms you rearrange often, upper-storey bunks, or homes where the lift and corridors are tight on delivery day.

It is also the cheapest standard size across almost every brand and material. If budget is the deciding factor, or you are furnishing a room that will not be used every night, the single stretches your money furthest.

The savings compound beyond the mattress itself. Because a single is smaller, its frame, its bedsheets, its protector and any topper you add all cost less than the equivalents for a larger bed. Furnishing a child’s room around a single therefore keeps the whole bedroom affordable, which matters when kids outgrow things and you expect to replace the setup in a few years anyway. A single is also the size most likely to survive a house move intact, since it slots into a lift or up a staircase without the drama a Queen or King can cause.

What room size and clearance it needs

A single is the most forgiving size for clearance. You can get by with just 50 to 60 cm of walking space on the side you use, and because it is short on width you can often place two singles in one room with a walkway between them — handy for shared children’s rooms.

In a small HDB common bedroom, a single frees up enough floor for a proper study desk, a wardrobe and a clear path, which is why it is the default in kids’ and study bedrooms. If you are working with a genuinely tight room, our ideas on HDB small-space storage pair well with a single to keep the floor clear.

To picture the footprint, a single frame occupies only about 1 metre of wall width once you allow for the frame itself. In a 2.4-metre-wide common bedroom that leaves close to 1.4 metres of clear floor on the other side — enough for a full-depth wardrobe and still a comfortable walkway. No other standard size gives a small room that much breathing space, which is precisely why architects and interior designers default to singles when planning children’s and study rooms in compact flats.

Who a single suits

The single is at its best in these situations:

• Children’s bedrooms, where a small body has plenty of room and the freed floor space matters more than bed width.
• Bunk beds and loft beds, which are almost always built around single mattresses.
• Daybeds and sofa-beds in a study or multipurpose room, doubling as seating by day.
• Guest and helper rooms, where the bed is used occasionally and compactness wins.

Where it falls short is nightly adult use. At 91 cm wide, a single is snug for a grown adult, especially anyone broad-shouldered or a restless sleeper. It works, but comfort is limited.

Bedding and bedsheets at this size

Single bedding is the most universally available size after Queen. Fitted sheets, bedsheet sets, mattress protectors and toppers are all easy to find locally and are usually the cheapest tier, which suits a child’s room where sheets get washed often and replaced as they wear.

Because Singapore’s single at 91 cm is almost identical to a UK single at 90 cm, most UK-labelled single bedding fits fine here. Just be careful not to mix up single and super single sheets — the 16 cm difference means one will sag and the other will not stretch on. A well-fitted mattress protector is especially worthwhile on a kid’s single, where spills are a fact of life.

One practical point for bunk and loft beds: check the mattress thickness the frame is rated for before you buy. Many bunks specify a maximum thickness for the upper bunk so the safety rail still stands proud of the mattress. A thick pillow-top single that is perfect on the floor can be unsafe up top, so match the mattress to the frame rather than the other way round.

When to step up from a single

The most common upgrade path is single to super single. If the sleeper is an adult, or a child who is shooting up and will use the bed for years, the modest jump to a super single buys 16 cm of width for a small increase in cost and footprint — usually worth it. Our comparison of what mattress size to choose in Singapore lays out that decision in full.

The single’s advantages are all about compactness and cost, so the moment those stop being your priority, sizing up makes sense. But if you genuinely need the smallest, lightest, most affordable bed — and many rooms do — the single is unbeaten. Choosing the right frame matters too; our guide to how to choose a bed frame covers slim and storage options that keep a single room from feeling cramped.

The bottom line

The single mattress size — about 91 x 190 cm or 36 x 75 inches — is the smallest, cheapest and most manoeuvrable standard bed you can buy in Singapore. It is the natural fit for children’s rooms, bunks, daybeds, study rooms and guest beds, and it slots into spaces where nothing larger will go.

Its one real limitation is width for adults. If a grown-up will sleep on it every night, a super single is a small step up that pays off in comfort. But for kids, occasional use and the tightest rooms, the single remains the most practical size on the market.