Choosing the right mattress size is one of the most practical decisions in the mattress buying process. Get the size right and everything else — bedding, room layout, bed frame — follows more easily. Get it wrong and even the most comfortable mattress will create problems.
This guide covers every standard mattress size available in Singapore, from the compact single through to the generous super king, with clear dimensions and guidance on who each size suits best.
Standard Mattress Sizes in Singapore
Single: 91 cm x 190 cm
The single is the most compact standard mattress size. It suits children, solo sleepers in smaller rooms, and guest or helper bedrooms where space is limited. At 91 cm wide, it works well with a standard single bed frame and leaves adequate floor space in most smaller HDB rooms.
Super Single: 107 cm x 190 cm
The super single sits between the single and the queen in terms of width. At 107 cm wide, it offers noticeably more room than a standard single and is a popular choice for solo adults who want more space without the footprint of a queen. It is widely available and suits a range of room sizes.
Queen: 152 cm x 190 cm
The queen is one of the most popular sizes for Singapore couples. At 152 cm wide, it offers comfortable space for two people while fitting comfortably in most standard HDB master bedrooms and condo rooms. It is also a generous choice for solo sleepers who want maximum room.
King: 183 cm x 190 cm
The king is a generous size that suits couples who want maximum sleeping space or families who share the bed with young children. At 183 cm wide, it requires a larger bedroom — typically a condo master bedroom, landed property room, or larger HDB room — to feel balanced and accessible.
Super King: approximately 200 cm x 200 cm
The super king is the largest commonly available mattress size. Dimensions can vary between brands, but it is typically around 200 cm wide and may also be longer than the standard 190 cm. It is suited to large master bedrooms in landed properties or luxury condos where space is not a constraint.
Quick Size Comparison at a Glance
• Single: 91 cm x 190 cm — compact, suits children and solo sleepers in smaller rooms.
• Super single: 107 cm x 190 cm — practical solo option with extra room.
• Queen: 152 cm x 190 cm — popular for couples and spacious solo sleep.
• King: 183 cm x 190 cm — generous size for couples and families in larger rooms.
• Super king: approximately 200 cm x 200 cm — largest standard size for spacious bedrooms.
How to Choose the Right Size
Step One: Measure Your Room
Before anything else, measure your bedroom. Note the width and length, and consider where other furniture will sit. Leave at least 60 cm on each side of the bed and at the foot for comfortable access and airflow.
Step Two: Consider Who Will Sleep on It
One adult sleeping alone has different needs from two adults sharing the bed, or a family that includes young children. Match the size to the people who will actually use it, not just the room dimensions.
Step Three: Check the Bed Frame
Your mattress needs to match your bed frame. If you are buying a new frame and mattress together, this is straightforward. If you are replacing a mattress only, measure the internal dimensions of your existing frame carefully before ordering.
Which Sizes Are Available at Somnuz?
The Somnuz mattress range is available in multiple sizes across different collections. Browse the full mattress collection to see which sizes are available for each model. The
Premium Series and
Luxury Series are both available in a range of sizes to suit different room types and sleep needs.
Frequently Asked Questions
What is the most popular mattress size in Singapore?
The queen size is one of the most widely chosen mattress sizes in Singapore, particularly for couples in HDB and condo master bedrooms. The super single is also very popular for solo sleepers.
Can I fit a queen mattress in an HDB bedroom?
In most HDB master bedrooms, a queen size fits comfortably with adequate clearance on each side. Some HDB common rooms may be too small for a queen, in which case a super single is often the better fit.
Is a super king the same as a double king?
Not always. The term 'double king' is sometimes used informally, but there is no standard definition. A super king is the most commonly used term for a mattress wider than a standard king. Always check the exact centimetre dimensions of any mattress described with this terminology.
What size mattress is best for a child?
A single mattress suits most young children. As they grow into teenagers, a super single offers more room and can last longer before needing to be replaced with a larger size.
Do I need to buy a new bed frame if I change mattress size?
Yes. Bed frames are built to specific internal dimensions. If you change from a super single to a queen, for example, you will need a queen bed frame to match. Always confirm size compatibility before purchasing either the mattress or the frame.
Find the Right Size for Your Home
Somnuz mattresses are available in single, super single, queen, and king sizes across a range of collections. Browse the full mattress collection to find the right size and comfort level for your bedroom.