What Is Size Of Double Bed Mattress? Measurements, Fit, and FAQs

If you’re asking “What Is Size Of Double Bed Mattress”, you’re usually trying to figure out whether a double mattress will fit your room, your bed frame, or two sleepers comfortably. This guide explains standard double mattress dimensions, how they compare to other sizes, and what to consider before choosing one.

What is the standard size of a double bed mattress?

In most regions that use imperial measurements, a standard double bed mattress (often called a full mattress) typically measures around:

• 54 inches wide × 75 inches long
• Approximately 137 cm × 191 cm

This is the size many people mean when they search “What Is Size Of Double Bed Mattress”. However, there can be slight variations between manufacturers, so it’s always wise to check exact measurements when purchasing.

Is a double bed the same as a full-size mattress?

Yes, in many markets:

• “Double” = “Full”
• Both usually refer to a mattress around 54" x 75" (137 cm x 191 cm).

Some retailers may prefer the term “full,” while others use “double,” but they generally describe the same size category.

How does a double mattress compare to other common mattress sizes?

Understanding nearby sizes helps you decide if a double is the right fit.

A double mattress is significantly wider than a twin, offering more room for a single sleeper. Compared to a queen, it is narrower and shorter, which can matter for couples or taller sleepers.

Is a double bed mattress big enough for two people?

A double mattress can fit two people, but it is often considered cozy or snug for regular two-person use.

• Width per person on a double is about 27 inches (68.5 cm) each.
• On a queen, each person has about 30 inches (76 cm).

For shorter or smaller sleepers, or for couples who don’t mind being close, a double can work. For more personal space or restless sleepers, many people prefer moving up to a queen or king.

What about double XL or small double sizes?

When looking up “What Is Size Of Double Bed Mattress,” you may also encounter similar but different sizes:

Small Double (also called “three-quarter” in some regions)

• Often around 48" × 75" (122 × 191 cm)
• Narrower than a standard double, sometimes chosen for very small bedrooms or guest rooms.

Double XL

• Often around 54" × 80" (137 × 203 cm)
• Same width as a standard double, but 5 inches longer, helpful for taller sleepers.

These are not universal standards, so dimensions can vary by brand and region. Always check the label and product details.

How much space does a double bed mattress need in a room?

To decide if a double will fit your space comfortably:

• Start with the mattress: 54" × 75" (137 × 191 cm).
• Add space for the bed frame, which can add a few inches on each side.
• Aim to leave at least 24–30 inches (61–76 cm) of open space around the bed where possible so you can move easily and open doors or drawers.

This helps ensure the bed doesn’t overwhelm the room or block pathways.

What should I consider before choosing a double bed mattress?

When comparing sizes, think about:

• Number of sleepers – Single adult, teen, child, or two adults?
• Height of sleepers – Taller than about 6 feet may prefer more length.
• Sleeping habits – Do you toss and turn or spread out?
• Room size – Will a double allow comfortable walking space and furniture placement?
• Existing bed frame – Check that your frame’s inner dimensions match the double size.

Being clear on these factors makes the answer to “What Is Size Of Double Bed Mattress” more than just numbers—it clarifies whether it fits your real-life needs.

✅ Quick Mattress Takeaways

Key points to understand about “What Is Size Of Double Bed Mattress”:

• Standard double / full size is typically 54" × 75" (137 × 191 cm).
• “Double” and “full” usually mean the same mattress size.
• A double is wider than a twin but narrower and shorter than a queen.
• It is often ideal for a single adult; it can fit two people but offers limited personal space.
• Small double and double XL exist but are not universal; always check exact measurements.
• Before choosing, consider room size, number of sleepers, height, and bed frame dimensions.

With these measurements and comparisons in mind, you can judge whether a double bed mattress size matches your space, comfort preferences, and sleeping arrangements.