What Is The Size Of Single Mattress? Standard Dimensions Explained
If you’re asking “What is the size of single mattress?”, you’re usually trying to find out whether a single bed will fit in a specific room, suit a child or guest, or match your existing bedding. This guide explains the typical single mattress size, how it differs from similar options, and what to consider before choosing one.
What Is the Size of a Single Mattress?
In many regions, a standard single mattress typically measures around:
- 90 cm x 190 cm
- Approximately 3'0" x 6'3" in feet and inches
These dimensions can vary slightly by country or manufacturer, but 90 x 190 cm is a commonly accepted reference point when people ask, “What is the size of single mattress?”
Some brands may list a single as 36" x 75", which is very close to 90 x 190 cm and usually considered equivalent for everyday purposes.
Why Does Single Mattress Size Matter?
Understanding single mattress dimensions helps you:
- Plan room layout in smaller bedrooms, guest rooms, or shared spaces
- Choose the right bed frame, slats, or base to match the mattress
- Buy correctly sized bedding, such as fitted sheets and duvets
- Estimate sleeping space for a child, teen, or adult sleeper
A single mattress is usually designed for one person and is often chosen for children’s rooms, bunk beds, or compact spaces where a larger mattress might feel crowded.
Is a Single Mattress the Same as a Twin?
This is a common point of confusion. When searching “What is the size of single mattress?”, many people are also wondering about “twin” sizes.
Single vs. Twin: Are They Different?
- In some regions, “single” and “twin” are used interchangeably for a mattress around 90 x 190 cm (36" x 75").
- In other regions, “twin” is more common terminology, while “single” is older or less frequently used.
For practical purposes, when you see a standard single or twin mattress listed as 90 x 190 cm / 36" x 75", they are generally considered the same size.
How Does a Single Compare to Other Mattress Sizes?
To make sense of where the single fits among other sizes, here is a simple comparison:
| Mattress Size | Approx. Dimensions (cm) | Typical Use |
|---|---|---|
| Single | 90 x 190 | One child, teen, or adult |
| Small Single* | 75 x 190 | Narrow spaces, smaller beds |
| Double | 135 x 190 | Two sleepers in smaller rooms |
*Small single sizes may not be available everywhere.
This table is a general guide; exact measurements can vary slightly between manufacturers and regions.
Who Is a Single Mattress Best For?
A single mattress is typically a good fit for:
- Children and teenagers who have a standard-sized room
- Adults who sleep alone and are comfortable with narrower space
- Guest rooms where occasional single occupancy is expected
- Bunk beds or daybeds designed for single-size mattresses
Many people find a single mattress practical when floor space is limited, but still want a full-length sleeping surface.
How Much Space Does a Single Mattress Take in a Room?
When asking “What is the size of single mattress?”, you may also want to know how much floor space it will use once on a bed frame.
- With a standard bed frame, you can expect the overall footprint to be slightly larger than the mattress—often a few centimeters or inches extra on each side.
- It’s helpful to measure the room and leave space for:
- Walking areas
- Storage or wardrobes
- Desks or bedside tables
📏 Tip:
For a narrow room, placing a single bed against a wall can create more open floor space.
Common Questions About Single Mattress Sizing
Do all single mattresses have the exact same size?
Not always. While 90 x 190 cm is a common reference, you might find slight differences, such as 92 x 188 cm or similar. These small variations are usually manageable with standard bedding but can matter for tightly fitted frames.
Will single-sized bedding always fit?
Most bedding labeled as “single” or “twin” is designed to fit the standard single mattress dimensions. However, deeper mattresses or pillow-top designs may require deep-pocket fitted sheets for a better fit.
Can two single mattresses make a larger bed?
In some setups, two single mattresses are combined on a large base, though they usually do not exactly match the dimensions of common larger sizes. This depends on regional standards and the configuration of the bed base.
✔️ Quick Mattress Takeaways
Key points consumers should understand about “What Is The Size Of Single Mattress”
- A standard single mattress is typically around 90 x 190 cm (3'0" x 6'3").
- Many people consider single and twin to be roughly the same size in standard measurements.
- Singles are commonly used for children, teens, solo adults, guest rooms, and bunk beds.
- Always check exact dimensions from the manufacturer, as minor size variations are normal.
- Ensure you measure both room space and bed frame size before choosing a single mattress.
- Bedding labeled as single or twin usually fits this size, but deeper mattresses may need special fitted sheets.
Understanding “What is the size of single mattress?” gives you a clear starting point when planning a bedroom, choosing a bed frame, or buying new bedding, helping you create a comfortable and well-fitted sleep setup.
