what is the size of single bed in cm

 

What Is the Size of a Single Bed in CM 

If you’re shopping for a new mattress, upgrading your child’s bedroom, or separating bunk beds into individual beds, understanding the exact size of a single bed is essential. Measurements matter—not just for comfort, but also for room layout, bedding purchases, and long-term usability.



In this guide, we’ll break down the standard dimensions of a single bed in centimeters, compare international variations, and help you decide whether a single bed is the right fit for your space.

Standard Size of a Single Bed in Centimeters

The most common single bed size worldwide is:

90 cm wide × 190 cm long

This is considered the standard single bed size in many countries.

However, dimensions can vary slightly depending on location and manufacturer.

Single Bed Size by Country

United Kingdom & Europe

In the UK and most of Europe, a standard single bed measures:

  • 90 cm × 190 cm

There is also a slightly longer version called a “single long”:

  • 90 cm × 200 cm

This extra 10 cm in length is helpful for taller sleepers.

United States

In the U.S., what is commonly called a “Twin” bed is similar to a single bed:

  • 99 cm × 191 cm (rounded from 39 inches × 75 inches)

While slightly wider than the UK single, the length is almost the same.

There is also a “Twin XL” option:

  • 99 cm × 203 cm

This version is popular in college dorm rooms because of the extra legroom.

Australia

In Australia, the standard single bed size is:

  • 92 cm × 188 cm

Again, very close to the international standard, with small variations.

Why Do Sizes Vary Slightly?

Bed sizes evolved independently in different countries based on:

  • Average height of the population

  • Manufacturing standards

  • Traditional room sizes

  • Mattress industry regulations

Although the differences are small, even a few centimeters can affect:

  • Fitted sheets

  • Mattress protectors

  • Bed frames

  • Bedroom layout planning

Always double-check the exact measurements before buying bedding or frames.

Is a Single Bed Big Enough?

A single bed (90 × 190 cm) is ideal for:

  • Children

  • Teenagers

  • Small bedrooms

  • Guest rooms

  • Daybeds

  • Bunk beds (when separated)

However, for adults—especially taller individuals—it may feel narrow or short.

Who Should Consider a Larger Size?

  • Adults over 180 cm tall

  • People who move a lot while sleeping

  • Those sharing the bed with pets

In these cases, a small double (120 cm wide) or standard double (135–140 cm wide) may be more comfortable.

Mattress vs. Bed Frame Size

It’s important to understand that:

  • The mattress size is typically 90 × 190 cm.

  • The bed frame will usually be slightly larger.

Frames can add:

  • 5–10 cm to the width

  • 5–15 cm to the length

This depends on whether the bed has:

  • A headboard

  • A footboard

  • Thick side panels

  • Storage drawers

When measuring your room, always account for the full frame size—not just the mattress.

How Much Space Does a Single Bed Need in a Room?

For comfortable movement around the bed, interior designers recommend:

  • At least 60 cm of walking space on one side

  • 60–75 cm at the foot of the bed

Minimum room size suggestion:

  • 2.5 m × 2.5 m for comfortable placement

Single beds are perfect for compact bedrooms where maximizing floor space matters.

Bedding Size for a Single Bed

For a standard 90 × 190 cm mattress, look for:

  • Fitted sheet: 90 × 190 cm

  • Duvet cover: 135 × 200 cm (common in UK)

  • Mattress protector: 90 × 190 cm

If you have a 200 cm long mattress, make sure your sheets match that length.

Benefits of a Single Bed

Choosing a single bed offers several advantages:

✔ Space-saving
✔ Budget-friendly
✔ Easy to move
✔ Perfect for children’s rooms
✔ Works well in bunk bed setups
✔ Ideal for guest rooms

Because of its compact size, a single bed allows more room for desks, wardrobes, or play areas.

Single Bed vs. Small Double: What’s the Difference?

Bed TypeSize in CMBest For
Single90 × 190One child or adult
Small Double120 × 190One adult wanting extra space
Double135–140 × 190Two adults

If space allows, upgrading slightly can significantly improve comfort.

The standard size of a single bed is 90 cm × 190 cm, though slight variations exist depending on the country. Before purchasing a mattress, bed frame, or bedding, always measure carefully and confirm the exact dimensions.



A single bed remains one of the most practical and versatile bed sizes available—especially for children’s bedrooms, guest rooms, and compact living spaces.

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