What Is The Size Of An Extra Long Twin Mattress? Dimensions, Fit, and FAQs
If you’re searching “What Is The Size Of An Extra Long Twin Mattress”, you’re likely trying to figure out whether this mattress size will fit your body, your bed frame, or a specific room. This guide breaks down the exact dimensions, how it compares to other sizes, and when an extra long twin (often called twin XL) makes sense.
What Is The Size Of An Extra Long Twin Mattress?
A standard extra long twin mattress typically measures:
- 38 inches wide x 80 inches long
(Sometimes listed as 39" x 80", depending on the manufacturer.)
That means an extra long twin is the same width as a regular twin, but about 5 inches longer. This added length is the main reason many taller sleepers and college dorms use this size.
How Is an Extra Long Twin Different from a Regular Twin?
Both are narrow, single-sleeper sizes, but they are not the same length.
Typical dimensions:
| Mattress Size | Width (inches) | Length (inches) |
|---|---|---|
| Twin | 38 | 75 |
| Twin XL (Extra Long Twin) | 38 | 80 |
Key differences:
- Length: A twin XL is about 5 inches longer than a regular twin.
- Width: Both are usually about 38 inches wide.
- Who it suits: Twin XL is often preferred for taller teens and adults who want more legroom but still need a compact bed.
Why Does the Size of an Extra Long Twin Mattress Matter?
Understanding “What Is The Size Of An Extra Long Twin Mattress” helps with:
- Room planning: Making sure the bed fits without blocking doors, windows, or walkways.
- Comfort for taller sleepers: Those around or above average height may feel cramped on a 75-inch-long mattress.
- Bedding compatibility: Sheets, mattress protectors, and bed frames must match the exact size.
If your room is narrow or you’re furnishing a small guest room or dorm-style setup, the extra long twin offers more sleeping length without taking up the space of a full or queen.
Common Questions About Extra Long Twin Mattress Dimensions
Does a Twin XL Feel Too Narrow for Adults?
An extra long twin is narrow, but long. Many solo sleepers find it comfortable as long as they don’t need a lot of width to spread out. It’s generally:
- A practical choice for single sleepers in tight spaces.
- Less suitable for two people on one mattress because of the limited width.
Will Twin Sheets Fit an Extra Long Twin Mattress?
In most cases, regular twin sheets are too short for a twin XL.
- Fitted sheets: Usually must be labeled “Twin XL” or “Extra Long Twin” to fit properly.
- Flat sheets and blankets: Standard twin sizes sometimes work, but they may not tuck as securely at the foot of the bed.
Do I Need a Special Bed Frame for an Extra Long Twin?
A regular twin frame is often too short for an extra long twin mattress. Look for frames or bases specifically designed for:
- Twin XL
- Adjustable bases that list twin XL compatibility
- Platforms or slatted frames that mention 80-inch length
Using a frame that’s too short can leave the mattress unsupported at the end.
Can Two Extra Long Twins Make a Larger Bed?
Yes. Two extra long twin mattresses side by side typically match the overall dimensions of a king (about 76" x 80"). This setup is sometimes used when partners want different firmness levels while sharing the same overall bed size.
How Much Space Do I Need for an Extra Long Twin?
When planning a room, remember you need space around the mattress, not just for it.
An extra long twin (38" x 80") often works well in:
- Narrow bedrooms or studio apartments
- Dorm rooms
- Guest rooms that double as an office or multipurpose space
Allow some clearance on at least one long side (and the foot of the bed if possible) so the space remains easy to move through.
✅ Quick Mattress Takeaways
Key points to remember about “What Is The Size Of An Extra Long Twin Mattress”:
- Standard size: About 38" x 80" (sometimes 39" x 80").
- Compared to twin: Same width as a twin, but about 5" longer.
- Best for: Taller single sleepers, teens, and adults who need extra legroom in a compact space.
- Bedding: Use Twin XL–specific fitted sheets and protectors for a proper fit.
- Frames and bases: Choose a frame sized for 80-inch length; a standard twin frame is usually too short.
- Room fit: Works well in small or narrow rooms, dorms, and guest spaces.
- Flexibility: Two extra long twin mattresses side by side can approximate the size of a larger shared bed.
Understanding exactly what is the size of an extra long twin mattress makes it easier to choose bedding, frames, and room layouts that actually work in everyday life. With its narrow width and extended length, the extra long twin offers a practical balance between space-saving design and comfort for taller sleepers.
