Full Size Mattress vs Double: Is There Any Difference?
If you’re shopping for a mattress, you may see “Full” and “Double” used as two different options. This causes a lot of confusion.
Here’s the truth:
Full size mattress and Double mattress are the SAME size.
The names are different, but the measurements are identical.
Full vs Double Mattress Dimensions
Both mattresses measure:
- Width: 54 inches
- Length: 75 inches
There is no size difference at all.
| Mattress Name | Width | Length |
|---|---|---|
| Full | 54 in | 75 in |
| Double | 54 in | 75 in |
Why Are There Two Names?
The term “Double” was commonly used many years ago when beds were smaller and usually meant for two people.
Over time, mattress companies started using “Full” instead. Today, “Full” is the more common name in the USA.
You may still see “Double”:
- On older bed frames
- In hotels or older listings
- In second-hand furniture sales
Who Is a Full / Double Mattress Best For?
A Full (Double) mattress works well for:
- Single adults
- Teenagers
- Guest rooms
- Smaller bedrooms
- Kids who need more space than a Twin
⚠️ For couples, it can feel tight. Each person gets about 27 inches of space, which is less than a Twin XL.
Full vs Queen (Quick Comparison)
Many people confuse Full with Queen, but they are not the same.
| Mattress | Width | Length |
|---|---|---|
| Full / Double | 54 in | 75 in |
| Queen | 60 in | 80 in |
If you want more room to stretch or sleep with a partner, Queen is usually the better choice.
Can You Use the Same Sheets
Yes ✅
- Full sheets = Double sheets
- Full bed frame = Double bed frame
They are fully interchangeable.
Final Answer
✔ Full size mattress and Double mattress are exactly the same
✔ The difference is only the name
✔ “Full” is the modern, more common term in the USA
When shopping, don’t stress about choosing between Full or Double — just pick the one that fits your room and needs.
