What Is Size Of a Full Mattress? Exact Dimensions and How It Compares
If you’re asking “What Is Size Of a Full Mattress?”, you’re likely trying to figure out whether this mattress size will fit your room, your bed frame, or your sleep needs. This guide explains the standard full mattress dimensions, how it compares to other sizes, and when it’s a practical choice.
What Is the Size of a Full Mattress in Inches and Centimeters?
A standard full mattress (also called a double) typically measures:
| Mattress Size | Width (inches) | Length (inches) | Width (cm) | Length (cm) |
|---|---|---|---|---|
| Full / Double | 54″ | 75″ | ~137 cm | ~191 cm |
When people search “What Is Size Of a Full Mattress”, they usually want these exact measurements so they can compare it with a twin or queen and plan their bedroom layout.
Keep in mind:
- These are standard mattress dimensions.
- Slight variations can occur between manufacturers, especially with pillow-top or extra-thick models.
How Does a Full Mattress Compare to Other Common Sizes?
Understanding “What Is Size Of a Full Mattress” also means seeing how it stacks up against other mattress sizes.
Full vs. Twin
- Twin: 38″ × 75″
- Full: 54″ × 75″
A full mattress is the same length as a twin, but adds about 16 inches of width. Many people view it as a good upgrade from a twin when more sleeping space is needed without taking up as much room as a queen.
Full vs. Queen
- Full: 54″ × 75″
- Queen: 60″ × 80″
A queen is:
- 6 inches wider
- 5 inches longer
A queen often feels more comfortable for two adults, while a full is commonly chosen for solo sleepers or smaller rooms.
Full vs. Full XL
Some manufacturers offer a Full XL, which is typically:
- 54″ × 80″
This keeps the same width as a standard full, but adds 5 inches of length, which can be helpful for taller sleepers.
Who Is a Full Mattress Best For?
When exploring What Is Size Of a Full Mattress, you’re probably wondering if it suits your situation. Generally, a full mattress works well for:
- Single adults who want more space than a twin without moving up to a queen.
- Teenagers transitioning from child-sized beds.
- Guest rooms where occasional adult or teen guests stay.
- Smaller bedrooms where saving a few inches of width matters.
Two adults can share a full, but it may feel snug, especially for those who prefer more personal space while sleeping.
How Much Room Does a Full Mattress Need in a Bedroom?
To decide if a full will fit your space, consider both bed size and walking/functional space around it.
A full mattress is 54″ × 75″, but the actual footprint of your bed will be a bit larger due to:
- Bed frame thickness
- Headboard and footboard style
- Any side rails or storage features
Many people find it practical to leave:
- At least 24–30 inches of clearance on each accessible side of the bed
- Enough space for doors and drawers to open comfortably
📝 Tip: Measure your bedroom’s length and width, then subtract the full bed’s footprint plus walkway space. This helps confirm whether the room will feel open enough with a full-sized bed.
What Bedding and Bed Frame Do You Need for a Full?
Because the size of a full mattress is standardized, you can usually find matching items labeled “Full” or “Double” such as:
- Fitted sheets (54″ × 75″)
- Flat sheets sized to cover the full mattress with some overhang
- Full-size blankets, comforters, and duvet covers
- Bed frames or foundations rated for full/double size
It’s generally easiest to pair a full mattress with a full-specific bed frame, rather than trying to adapt a frame meant for a different size.
Common Questions About Full Mattress Dimensions
Is a Full Mattress Big Enough for Two People?
A full mattress can be used by two sleepers, but the shared width per person is narrower than on a queen. Many couples use a full in smaller rooms or for shorter-term situations, while a queen or larger often feels more spacious for regular use.
Do Full Mattress Sizes Vary by Country?
The name “full” or “double” and its dimensions (54″ × 75″) are common in many places, but some regions use different size standards or labels. If you’re buying or moving between countries, checking measurements in inches or centimeters is more reliable than relying on the name alone.
✔️ Quick Mattress Takeaways
Key points consumers should understand about “What Is Size Of a Full Mattress”:
- A standard full mattress is 54 inches wide by 75 inches long (about 137 cm × 191 cm).
- It is wider than a twin but narrower and shorter than a queen.
- Some brands offer a Full XL at 54″ × 80″ for extra legroom.
- A full mattress is often ideal for single adults, teens, guest rooms, and smaller bedrooms.
- It can fit two sleepers, but space will be more limited than on a queen or larger.
- Always consider room size, walking space, and existing furniture before choosing a full.
- Look for bedding and frames labeled “Full” or “Double” to match these dimensions.
Understanding What Is Size Of a Full Mattress helps you plan your bedroom layout, select compatible bedding, and decide if this size aligns with your comfort and space needs.
