Choosing a mattress size in Singapore is less about what feels luxurious in the showroom and more about what your bedroom can actually hold. Many HDB flats and condos have compact bedrooms, built-in wardrobes that need swing space, and windows or aircon units that limit where a bed can go. A king that looks perfect in a gallery can leave you squeezing sideways to reach the wardrobe at home.
This mattress size Singapore guide focuses only on the size question: how the common sizes compare, how to measure your room properly, and how to match a size to the people who will actually sleep on it. For firmness, materials and where to shop, see our guide on how to buy a mattress in Singapore.
The Common Mattress Sizes Sold in Singapore
Local retailers mostly sell five standard sizes. Exact dimensions vary slightly between brands, often by a few centimetres, so always check the product listing before you buy. The figures below are the typical ones you will see quoted.
| Size | Typical dimensions (W x L) | Best suited to | Room fit in a typical HDB bedroom |
|---|---|---|---|
| Single | about 91 x 190 cm | Young children, guest beds, daybeds | Fits almost any room, leaves space for a desk |
| Super single | about 107 x 190 cm | Older children, teens, one adult | Comfortable in common bedrooms |
| Queen | about 152 x 190 cm | Couples, or one adult who likes space | Fits most master bedrooms with room to walk |
| King | about 183 x 190 cm | Couples who want space, or a parent and young child | Tight in smaller master bedrooms |
| Extra long or custom | varies by maker | Tall sleepers, odd-shaped rooms | Depends entirely on the room |
Notice that most standard sizes share a length of around 190 cm. If anyone in the household is tall, check whether the retailer offers a longer version, because adding length is often easier than finding room for more width.
The super single is a size that surprises many newcomers. It is very common here, sits between a single and a queen, and is often the sweet spot for a teenager or a single adult in a common bedroom.
Measure the Room Before You Measure the Mattress
The mattress itself is only part of the footprint. The bed frame, headboard and any storage drawers all add to it, so measure with the frame in mind.
- Measure the floor space wall to wall. Note the positions of the door, windows, power points and the aircon unit.
- Add the bed frame. Frames commonly add several centimetres on each side, and a padded headboard can add more at the top. Check the frame’s overall dimensions, not just the mattress size it takes.
- Leave walkway space. Aim for enough room to walk comfortably along at least one side of the bed and at the foot. Many people find around 60 cm the minimum that feels comfortable, more if two people need to get in and out on separate sides.
- Check swing and slide space. Wardrobe doors, the bedroom door and any storage drawers under the bed need clearance to open fully.
- Mark it out on the floor. Use masking tape to outline the bed and frame. Live with it for a day and see whether it feels cramped.
Also think about getting the mattress into the room. Lift doors, corridor corners and narrow bedroom doorways can be a problem for large, stiff mattresses. Rolled or boxed mattresses are easier to carry in, but ask the retailer whether the model you want comes that way.
Matching the Size to Who Sleeps There
Room size sets the upper limit. Within that limit, match the mattress to the sleepers.
Couples
A queen is the most common choice for couples, and it fits most master bedrooms in flats. If either partner is a restless sleeper, runs hot at night, or you simply want more personal space, a king helps, but only if the room can take it without losing the walkway. In a warm climate, a little extra width can make a real difference to sleep comfort when two people share a bed.
Families who co-sleep
Many families in Singapore co-sleep with babies or young children for a few years. A king, or two mattresses placed side by side on the floor or on low frames, can work well. If you go with two mattresses, make sure they are the same height and firmness, and that there are no gaps where a small child could get stuck. For infant sleep safety, follow the advice of your paediatrician or the guidance on HealthHub rather than relying on furniture choices alone.
Children and teens
A single works for young children and leaves room for play. Because children grow quickly, many parents skip straight to a super single, which a child can use from primary school into adulthood. If space is very tight, consider a super single on a frame with drawers underneath, or a bunk or loft setup for siblings, checking the safety guidance for top bunks.
Single adults and helpers
For one adult, a super single is usually enough and saves floor space for a desk or wardrobe. If the room is large and you sleep diagonally or work from bed, a queen is a comfortable upgrade. For a helper’s room, which can be small in many flats, measure carefully, since a single or super single is often all that fits while leaving room to move.
Guests and multi-purpose rooms
If a room doubles as a study or guest room, a single or super single on a daybed or trundle frame keeps the floor free most of the time. A trundle frame stores a second mattress underneath, which is handy for occasional visits from family.
Common Sizing Mistakes to Avoid
- Buying the mattress before the frame. Choose them together so you know the true footprint and that the mattress fits the frame properly.
- Ignoring the aircon. A bed placed directly under the aircon unit may feel too cold for some sleepers. Factor in where the bed must sit when choosing the size.
- Forgetting bedding sizes. Super single and some custom sizes need matching sheets and protectors. Check that bedding is easy to find in the size you choose. Our guide to buying a mattress and bedding covers the bedding side.
- Choosing for today only. If you plan to move within a few years, or expect a baby, think about whether the size will still work in the next home.
- Overlooking weight and handling. Larger mattresses are heavier to rotate and clean. If you plan to turn and air your mattress regularly, as covered in our guide on how to clean your mattress at home, factor in who will be lifting it.
A Quick Decision Checklist
Before you head to the shop, write down these answers and take them with you:
- The room’s width and length, and the distance from the bed wall to the wardrobe and door.
- The overall frame dimensions you are considering, including headboard and drawers.
- How many people, and how many children, will regularly sleep in the bed.
- The height of the tallest sleeper.
- Whether the mattress needs to fit through a narrow door or around a tight corner.
- Whether you may move to a different flat in the next few years.
With those numbers in hand, the right mattress size in Singapore usually becomes obvious. Pick the largest size that still leaves a comfortable walkway and clear door swings, then match it to the sleepers. A slightly smaller bed in a room you can move around in comfortably will almost always feel better than a bigger bed you have to climb around.
Frequently Asked Questions
Is it okay to put a mattress straight on the floor in Singapore? It is possible, but not ideal in our humidity. Moisture can get trapped between the mattress and the floor, encouraging mould, so a slatted frame or a raised base lets air circulate. If you do use the floor, air the mattress often and lift it regularly.
Is it safe to buy a mattress online without trying it first? It can be fine if the seller has a clear trial period and return policy. Read how long you can test it, who pays for collection and whether any fees apply, and get these in writing. Measure your room and doorways carefully before ordering.
Does a bigger mattress sleep hotter in a warm climate? Size on its own is not the main factor. Materials and construction matter more, as do the room’s airflow and your bedding. A larger bed can give two sleepers more room to avoid sharing body heat, which many people find helpful in Singapore.
How do I get rid of an old mattress in Singapore? Ask the retailer whether they collect your old mattress when delivering the new one, since many offer this service. Otherwise, arrange bulky waste disposal through your town council or a licensed collector. Check the current arrangements, as options and fees change.
Further reading: Choosing a Mattress Protector for Humid Singapore Nights