Single vs Super Single Mattress: Which Size Fits Your Bedroom

The difference between a Single and a Super Single mattress sounds straightforward — one is simply wider than the other. But in Singapore's bedrooms, where a few centimetres can determine whether a bed frame fits with clearance on both sides or becomes a wall-to-wall squeeze, the choice carries more weight than most people expect. The decision also depends on who's sleeping on it, how the room is used, and whether you're furnishing a child's bedroom, a teenager's room, a helper's room, or a compact master in an older resale flat.

This guide walks through the exact dimensions, explains who each size genuinely suits, and helps you make the decision based on your room and your household — not based on which name sounds better. We've helped a great many Singapore homeowners work through exactly this question across BTO flat renovations and resale furnishing projects alike, so what follows reflects the practical patterns we see most often.

What are the actual dimensions of each size?

In Singapore, mattress sizing follows local standards that differ slightly from American or European sizing. Here are the dimensions you'll be working with:

• Single mattress: 91cm wide × 190cm long. Some manufacturers list this as 92cm × 190cm, so always verify the specific product specifications.
• Super Single mattress: 107cm wide × 190cm long.

The length is identical at 190cm. The meaningful difference is the 16cm of additional width on the Super Single. In practice, 16cm is roughly the width of a standard pillow — not transformative if you're thinking about it abstractly, but genuinely significant when you're sleeping on your side and want your arm to rest on the mattress rather than hang over the edge.

Both sizes are consistently 190cm in length, which suits most adult sleepers up to approximately 175-180cm in height comfortably. Very tall individuals — those above 185cm — may want to consider Queen (152cm × 190cm) or King size (183cm × 190cm), where some manufacturers offer 200cm lengths.

When planning your bedroom layout, always measure the actual room dimensions and factor in the bed frame, which adds 5-15cm to the mattress dimensions on each side depending on the frame design. Our bed frame collection lists external frame dimensions on each product page — use those numbers, not the mattress size alone, when checking clearance.

Who is a Single mattress best suited for?

A Single mattress is the right choice in more situations than people realise. The 91cm width is genuinely comfortable for one person who sleeps relatively still, and it's the standard size you'll find in school dormitories, hospital wards, and hotel staff quarters — environments where space efficiency is the primary constraint and the sleeping surface has to be practical above all else.

In Singapore homes, a Single mattress is most commonly used in the following situations.

Children's bedrooms from age five or six onwards

Young children who have graduated from a toddler bed but aren't yet teenagers typically fit comfortably on a Single. The narrower width also means a smaller bed frame, which preserves floor space for a study desk and wardrobe in rooms that are often 8-10 sqm.

Domestic helper's bedrooms

Many HDB flats and condominiums include a smaller room — sometimes as compact as 6 sqm — intended as a helper's room or utility room. A Single mattress is almost always the only size that fits in these spaces with enough clearance to open a wardrobe door and move comfortably.

Study rooms that double as guest rooms

A single day bed or trundle bed in a study is a practical solution for occasional guests. The narrower Single mattress keeps the room functional as a workspace during the day.

BTO second bedrooms where space is prioritised

In a 4-room BTO flat, the second bedroom is typically 9-11 sqm. A Single bed leaves enough room for a full wardrobe and study desk alongside it — a layout that's important when the room serves a school-aged child.

One honest note: if the person sleeping on the Single is an adult who moves during sleep, or is broader-shouldered than average, they may find 91cm limiting. This is worth considering before committing.

Who is a Super Single mattress best suited for?

The Super Single is the size that tends to get overlooked in favour of jumping straight to a Queen. But for solo adult sleepers, it often makes more practical sense than people initially assume.

At 107cm wide, a Super Single gives an adult enough width to sleep on their side, shift position during the night, and have a small pillow buffer on either side without feeling constrained. It is not a couple's mattress — two adults sleeping regularly on a Super Single will find it tight. But for one adult, it is genuinely comfortable.

In Singapore homes, a Super Single is most commonly right for the following situations.

Teenagers and young adults in their own bedroom

A teenager who has outgrown a Single but is in a room that can't fit a Queen will sleep more comfortably on a Super Single. The extra 16cm of width allows for the natural movement pattern of an older sleeper.

Adults in single-occupancy bedrooms

If you're furnishing a bedroom for yourself — whether in a shared flat, a studio unit, or a second bedroom in your own home — the Super Single gives you a more comfortable night's sleep than a Single without the space commitment of a Queen.

Guest bedrooms where you want to treat guests well

A Super Single in a guest bedroom offers a meaningful upgrade over a Single without requiring a full Queen-sized layout.

Second master bedrooms in landed homes

Some landed properties have a second bedroom large enough for a Super Single but not naturally proportioned for a Queen. The Super Single fits the room, leaves adequate clearance, and provides genuine adult comfort.

When comparing against a Queen, the Super Single is 45cm narrower. For a solo sleeper, those 45cm rarely translate into a meaningfully better night's sleep — but they do translate into more floor space on either side of the bed, which affects how freely you can move around the room and whether your bedside table options fit naturally alongside the frame.

How to work out which size fits your specific room

Start with the room dimensions, not with what size you want. This is the order we'd walk through with you in the showroom.

Measure the room width and length first

For a mattress that runs lengthwise against the wall, the room needs to accommodate the bed frame's external width plus at least 70-80cm of clear passage space on the open side. Less than 70cm of clearance on the walking side starts to feel cramped and makes wardrobe access difficult.

Note where the door and windows sit

A door that swings inward reduces usable clearance on one side. A window above the bed head restricts how close the bed can sit to that wall.

Calculate the external bed frame dimensions

A Super Single mattress at 107cm sits in a frame that typically measures 115-120cm externally. Add 80cm clearance and you're looking at a minimum room width of roughly 195-200cm for a comfortable Super Single setup. A Single mattress frame at approximately 100-105cm external width needs a minimum room width of around 185cm for the same clearance standard.

Assess the room's primary purpose

A room used only for sleeping can tolerate a tighter layout than a room that doubles as a study, has a wardrobe that opens outward, or is used by an active child.

Consider future use

A child's bedroom furnished for a six-year-old today will house a teenager in eight years. If the room comfortably fits a Super Single now, installing one rather than a Single avoids a mattress-and-frame replacement during the busy secondary school years.

Our mattress collection includes full product dimensions for both Single and Super Single sizes. Cross-reference those against your room measurements before deciding. If you're uncertain, bring your room dimensions to our showroom at 5 Ubi Link — we're open daily from 11:30 AM to 9 PM including weekends and public holidays, and our team is well-practised at working through bedroom layouts with a floor plan in hand.

Does mattress construction change between Single and Super Single?

The short answer is: it shouldn't, but it sometimes does at lower price points.

A well-made pocketed spring mattress — whether Single or Super Single — uses individually-wrapped coils across the full sleeping surface. A Single at 91cm wide might use 1,000-1,200 coils for a standard single-layer system. A Super Single at 107cm wide should scale proportionally, with approximately 1,200-1,400 coils for equivalent support density.

The practical concern is that some mattresses at lower price tiers use the same internal component cut to different external sizes, which can result in a reduced coil count without a proportional drop in price. When you're comparing mattresses across sizes, it's worth checking whether the coil count or foam density for foam mattresses is documented.

Foam density is the other specification to look for if you're comparing foam or foam-hybrid mattresses. A high-resilience foam layer at 40-45kg/m³ performs meaningfully better than one at 25-30kg/m³ in terms of support retention over time — and this holds true regardless of whether the mattress is Single or Super Single sized.

For children's mattresses specifically, you don't need the highest specification available. A mid-density pocketed spring or quality foam mattress at a reasonable price point will serve a child well through their school years. Spending significantly more on a child's mattress than their room and age warrant is rarely necessary.

For a teenager or adult sleeping on a Super Single as their primary mattress, the construction quality matters more and is worth the additional investment.

A note on bedframes, linen, and the practical ecosystem

One frequently overlooked cost of changing mattress size is the knock-on effect on bedding and the bed frame. Single and Super Single mattress sizes require different fitted sheets, mattress protectors, and duvet covers — and Super Single bedding is less widely stocked than Single or Queen bedding in Singapore.

Before finalising your decision, check the bedding availability for your chosen size. Super Single fitted sheets are readily available at major linen retailers in Singapore, but the selection is narrower than for Queen. If you have strong preferences about thread counts, specific fabrics, or matching sets, verify that your preferred options are available in Super Single before committing.

Bed frames are size-specific. A Single bed frame will not accommodate a Super Single mattress and vice versa. If you already own a bed frame and are replacing a mattress, the new mattress must match the existing frame size exactly. Conversely, if you're starting fresh, the mattress size decision should come first and drive the frame selection.

Browse our bed frame collection to see which sizes are available across each design. Every product page lists the compatible mattress size alongside the external dimensions, which makes cross-referencing straightforward.

Which size should you choose?

The honest answer is that neither size is universally better — the right choice depends on who is sleeping on the mattress and how much room you have to work with.

Choose a Single when the sleeper is a child or the room is genuinely space-constrained. For helper's rooms, study-cum-guest rooms, and children's bedrooms in HDB flats where floor space is a priority, the Single does the job well without overreaching.

Choose a Super Single when the sleeper is a teenager or adult sleeping solo, and the room has the width to accommodate it comfortably. For most adults using a single mattress as their primary sleeping surface, the Super Single is the more comfortable long-term choice.

The 16cm difference is modest on paper but meaningful in practice. If your room can comfortably absorb a Super Single layout — and in many Singapore bedrooms, it can — the upgrade in sleeping comfort is real and worth the modest additional cost.

If you'd like to compare mattress options across both sizes in person, come by our showroom at 5 Ubi Link. Bring your room measurements and we'll help you work through the layout and the mattress options together. We're open daily from 11:30 AM to 9 PM — no appointment needed, no pressure. Rated 4.8 by 2,733+ verified Google reviews from Singapore homeowners, our team's job is to help you get the right fit for your room, not to steer you toward a larger size than you need.

For quick questions about dimensions or availability, WhatsApp us at +65 6518 9649 — we typically respond within the hour during showroom hours.