Getting the size right is one of the most practical steps in choosing a new mattress. A mattress that does not fit your bed frame properly will shift during sleep, feel unstable, and may wear unevenly over time. And unlike other aspects of a mattress purchase, size is something you can get exactly right before spending a cent.
This guide covers the exact dimensions of a single bed mattress in Singapore, how it compares to other sizes, and what to check before confirming your purchase.
Single Bed Mattress Dimensions in Singapore
A standard single bed mattress in Singapore measures approximately 91 cm wide by 190 cm long. This is the most compact standard adult mattress size available and is designed to fit within standard single bed frames.
Thickness varies by model and quality tier. Basic single mattresses typically range from around 15 to 20 cm in height. Better-quality options with additional comfort layers are often 25 cm or more. Thickness affects both comfort and how the mattress looks on the bed frame, so it is worth checking this alongside the width and length.
How Single Compares to Other Standard Sizes in Singapore
• Single: 91 cm x 190 cm — the most compact standard size.
• Super single: 107 cm x 190 cm — 16 cm wider, suited to solo adults wanting more room.
• Queen: 152 cm x 190 cm — significantly wider, suited to couples or solo sleepers upgrading.
• King: 183 cm x 190 cm — largest standard size, suited to couples with larger rooms.
The difference between a single and a super single is 16 cm in width. That may not sound like much on paper, but when you are lying down it translates to noticeably more room to move — which matters for adults who sleep restlessly or shift positions during the night.
Who Is a Single Bed Mattress Best For?
• Children and teenagers in their own bedroom who sleep alone.
• Solo adults in smaller rooms where floor space is limited.
• Guest or helper bedrooms where a compact and comfortable sleep surface is needed.
• Bunk bed setups where the frame requires a specific compact size.
For adults using a single as their main sleep surface every night, the 91 cm width is workable but on the narrower side. If your room allows for it, a super single at 107 cm gives you noticeably more comfort without a dramatic increase in the room footprint.
What to Check Before Buying
Measure Your Bed Frame
Not all single bed frames are exactly the same internal size. Some are built to hold a mattress of exactly 91 cm wide; others have a slightly different internal dimension depending on the manufacturer. Measure the internal width and length of your frame before purchasing — particularly if you are buying a replacement mattress for an existing frame.
Check the Thickness
A thicker mattress with quality comfort layers will feel more supportive and comfortable than a thin, basic option — especially for everyday nightly use. For children or occasional guest use, a standard thickness of 15 to 20 cm may be adequate. For regular adult use, a mattress of 25 cm or more tends to offer a noticeably better sleep experience.
Confirm Bedding Dimensions
Single fitted sheets and mattress protectors are sized for a 91 cm wide mattress. If you are replacing a mattress, check that any existing bedding fits the new mattress properly — particularly the pocket depth of the fitted sheet, which needs to match the mattress thickness.
Mattress Types for a Single Bed
Pocket spring mattresses offer breathable, responsive support and work well in single size. Browse the Somnuz pocketed spring mattress collection to see available options in single size.
Memory foam provides cushioned support and strong motion containment — a practical choice for solo sleepers who prefer a softer feel. See the memory foam mattress range for options.
Natural latex is breathable and hypoallergenic — a particularly good fit for children's rooms or allergy-sensitive sleepers. Explore the natural latex mattress collection for more.
Frequently Asked Questions
What is the standard single mattress size in Singapore?
A standard single mattress in Singapore is approximately 91 cm wide by 190 cm long. Always confirm the exact dimensions of any specific mattress before purchasing, as minor variations can exist between brands.
Is a single mattress big enough for an adult?
Yes, though it is on the narrower side for adults who move around frequently during sleep. At 91 cm wide, most adults can sleep comfortably on a single. If you want more room, a super single at 107 cm is worth considering if your room and frame allow for it.
Can I use a double mattress on a single bed frame?
No. A double or full-size mattress is typically wider than a single frame and will not fit properly. Always match your mattress dimensions to your bed frame dimensions.
How thick should a single bed mattress be?
For everyday adult use, a thickness of at least 20 to 25 cm provides better support and comfort than thinner options. For children or occasional guest use, a standard thickness of 15 to 20 cm may be sufficient.
Do single mattresses come in different firmness levels?
Yes. Single mattresses are available across the same range of firmness levels as larger sizes — soft, medium, medium-firm, and firm. The right level depends on who is sleeping on the mattress and their comfort preferences.
Find the Right Single Bed Mattress
Somnuz offers single bed mattresses with breathable comfort, dependable support, and quality materials suited to Singapore homes. Browse the full mattress collection to find the right option, or visit the experience centre at 134 Joo Seng Road, Level 2, Singapore 368359 to try the range in person.