What Is The Size Of a Double Mattress? Dimensions, Fit, and FAQs
If you’re wondering “What Is The Size Of a Double Mattress”, you’re usually trying to figure out whether it will fit your room, your bed base, or two people sharing. This guide explains typical double mattress dimensions, how they compare to other sizes, and what to consider before choosing one.
What Is the Standard Size of a Double Mattress?
In many regions, a standard double mattress (often called a “full” mattress) typically measures:
- 135 cm x 190 cm
- Approximately 4'6" x 6'3"
- Approximately 54" x 75"
These measurements can vary slightly by manufacturer, but these are the most commonly accepted double mattress dimensions.
Is a Double Mattress the Same as a Full Mattress?
In many markets, “double” and “full” describe the same size:
- Both are wider than a single or twin.
- Both are smaller than a queen.
However, naming can vary by country and retailer. It is wise to check the exact measurements on the label or product description instead of relying only on the name.
How Does a Double Mattress Compare to Other Mattress Sizes?
Here’s a simple comparison of common mattress sizes:
| Mattress Size | Approx. Dimensions (cm) | Approx. Dimensions (inches) | Typical Use |
|---|---|---|---|
| Single / Twin | 90 x 190 | 36" x 75" | One person, smaller rooms |
| Double / Full | 135 x 190 | 54" x 75" | One adult with extra space, or two people occasionally |
| Queen | 150 x 200 | 60" x 80" | Two adults, more space |
| King | 180 x 200 | 72" x 80" | Two adults, extra width |
📝 Key idea: A double mattress offers more width than a single but less space than a queen, especially for two adults.
Is a Double Mattress Big Enough for Two People?
Many couples do sleep on a double mattress, but comfort depends on:
- Body size and build of each sleeper
- Preferred amount of personal space
- Sleep positions (side, back, stomach, or combination)
For two adults, a double mattress can feel cozy and compact. Some pairs are comfortable with this, especially in smaller bedrooms. Others prefer the extra width and length of a queen or king for more room to move.
Will a Double Mattress Fit My Bedroom?
When asking “What Is The Size Of a Double Mattress”, you’re often really asking, “Will it fit my space?” A mattress is only part of the footprint; the bed frame can add extra width and length.
Before choosing a double:
- Measure your room’s length and width.
- Allow space to walk around the bed comfortably.
- Consider furniture like wardrobes, dressers, or bedside tables.
- Remember that some frames (especially with headboards or footboards) can make the overall bed larger than the mattress itself.
A general guideline is to leave clear walking space on at least one or two sides of the bed so the room does not feel cramped.
What Bedding Fits a Double Mattress?
To match the size of a double mattress, look for bedding labeled:
- Double
- Full (in regions where “full” is used)
For best results:
- Choose fitted sheets that list measurements close to 135 x 190 cm (54" x 75").
- Check the depth of the fitted sheet if you have a thicker mattress topper or a deeper mattress.
- Duvets, comforters, and blankets labeled double are usually sized to hang slightly over the edges.
Do Double Mattress Sizes Vary by Country?
Yes, double mattress dimensions can differ slightly between regions and manufacturers:
- Some areas may use metric sizes, others use imperial.
- Certain brands may have small variations in width or length.
Because of this, it is always helpful to confirm the exact measurements rather than assuming all doubles are identical.
✔️ Quick Mattress Takeaways
Key points to understand about “What Is The Size Of a Double Mattress”:
- A typical double mattress is about 135 cm x 190 cm (54" x 75").
- It is larger than a single/twin but smaller than a queen.
- Many people use a double for one adult who wants extra room, or for two adults who do not mind a closer sleep space.
- Always check exact dimensions and sheet sizing, as measurements can vary slightly.
- Measure your bedroom and bed frame to ensure a double mattress will fit comfortably.
When you know What Is The Size Of a Double Mattress, it becomes easier to plan your room layout, choose suitable bedding, and decide whether this size matches your comfort and space needs.

