Twin Mattress Dimensions
The twin mattress (also called a single mattress) measures 38 inches wide by 75 inches long. It's the most common mattress for kids' rooms, bunk beds, and guest rooms. Its compact dimensions make it the easiest mattress size to move through doorways.
How big is a twin mattress?
A twin mattress is 38 inches wide and 75 inches long. It's the smallest standard adult mattress size, ideal for children and single sleepers in small rooms.
Dimensions
Doorway Fit Analysis
Will a Twin Mattress fit through a standard doorway?
Will fit through with proper technique
- •Smallest dimension (thickness): 10"
- •Standard interior door: 32"
- •Standard exterior door: 36"
Fits with room to spare
Fits with room to spare
Fits with room to spare
Mattress Size Comparison
| Size | Width | Length | Area |
|---|---|---|---|
| Twin ← | 38" | 75" | 2,850 sq in |
| Twin XL | 38" | 80" | 3,040 sq in |
| Full/Double | 54" | 75" | 4,050 sq in |
| Queen | 60" | 80" | 4,800 sq in |
| King | 76" | 80" | 6,080 sq in |
| Cal King | 72" | 84" | 6,048 sq in |
Frequently Asked Questions
Will a twin mattress fit through a standard doorway?
Yes, easily. A twin mattress (38" × 75" × 10") can pass through a standard 32" door on its side with room to spare — the 10" thickness is well under the 32" door width.
What is the difference between twin and twin XL?
Twin XL is the same 38" width but 5 inches longer at 80" (vs 75"). Twin XL is standard in college dorms and better for adults over 6 feet tall.
Will a twin mattress fit in a car?
A twin mattress can fit in most SUVs and minivans with the seats folded. It will not fit inside a sedan but can be transported on a roof rack with proper securing.
Related Mattress Sizes
Related Calculators
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