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Full vs Twin Size Comparison Guide


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December 27, 2022

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Buying a new mattress that perfectly fits your room size and sleeping needs can be very confusing. Many mattress sizes are available in the market, but a twin or full bed perfectly fits your small room. Our detailed blog will help you understand the key differences, dimensions, pros, and cons of full vs. twin mattresses.

Full vs Twin Mattress Dimensions

The full size mattress is wider than twin mattress. The width of a twin-size bed is 15 inches shorter than the full mattress. We have mentioned the measures of twin, twin XL, full, and full XL mattresses for your better understanding.

Twin (Standard)

Dimensions: 38” x 75”

Surface area: 2,850 square inches

Twin XL

Dimensions: 38” x 80”

Surface area: 3,040 square inches

The twin bed also known as single bed are 38 inches by 75 inches. The surface area of twin size mattress is 2,850 square inches. The twin XL dimensions are 38 inches by 80 inches, and the surface area is 3,040 square inches.

Full (Standard)

Dimensions: 53” x 75”

Surface area: 3,975 square inches

Full XL

Dimensions: 53” x 80”

Surface area: 4,240 square inches

The dimensions of a full bed are 53 inches by 75 inches. The surface area is 2,850 square inches. The full XL dimensions are 53 inches by 80 inches, and the surface area is 3,040 square inches.

Twin vs Full Comparison Chart

Dimensions are not the only decision-makers while selecting the right mattress. Other parameters such as dimensions, surface area, price, ideal for, recommended room size, and usage also play a significant role in selecting the perfect mattress. The chart gives the comparison of twin vs. full sizes and other factors.

Parameters Full Mattress Twin Mattress
Dimensions 53 inches by 75 inches 38 inches by 75 inches
Surface Area 2,850 square inches 3,040 square inches
Price Expensive than twin Less expensive than full
Best for/Ideal for Teenagers and younger adults Children
Recommended Room Size Guest rooms, dorm rooms Kids room, hostels, college dorm rooms
Accessories Easy to find Easy to find

Twin vs Full: Pros and Cons

In this section, you will understand twin vs. full bed pros and cons in detail to help you better with your mattress selection.

Twin Mattress


Dimensions of a twin bed make it simple to move
They are less expensive than a full mattress
Kids and toddlers can sleep comfortably on them
Compatible for bunk beds


Very small for couples who want personal space
Very little space for teenagers
Not comfortable for adults
Less handy than a full mattress

Full Mattress


A full-size bed is a good option for taller people
A comfortable bed for younger adults
Extra width offers more space
All bedding accessories are available in market
Ideal for rooms with small size


Costlier than a twin mattress
Couples may not be comfortable in full mattress
Hard to shift/relocate the mattress 

What Should You Consider Before Deciding Between the Two?

Now that you know the difference between twin and full bed, you might be wondering what to consider before deciding between the two. 

Consider a standard twin mattress if:

  • You are buying a bed for a younger adult
  • You are looking for a bunk bed mattress
  • You are looking for a budget mattress

Consider a twin XL mattress if:

  • The sleeper is very tall 
  • Your room size is very small
  • You are setting up a bed for a lodging or a hostel

Consider a full mattress if:

  • The sleeper is a younger adult
  • You want a bed for yourself alone.
  • Your kid is a newborn, and you want him to grow in it over time.

Consider a full XL mattress if:

  • You want to sleep with your partner, kid, or pet
  • You need extra leg space
  • You cannot fit in a large-size mattress such as a king or queen mattress.

Other Mattress Sizes

A comfortable mattress helps you get a good quality sleep and lead a healthier lifestyle. Before buying a perfect mattress, you need to consider many parameters such as usage, surface area, price, ideal for, recommended room size, and dimensions. Hopefully, our guide will help you select the most comfortable mattress size for your sleep time.


If you are an individual full is better than a twin mattress, but if you are a couple, then twin might not be sufficient.

No, two twin beds placed side by side measure 76 by 75 inches, whereas the size of a full mattress is 53 by 75 inches.

A full-size mattress or double bed is a standard bed size for two people.

The best mattress size for toddlers is 28 inches by 52 inches.

A twin xl mattress is 54 inches by 75 inches, whereas a twin XL is 38 by 80 inches. The length of a Twin XL is more than a full mattress by 5 inches, whereas the width of a full-size bed is more than a twin XL by 16 inches.

No, a crib mattress is the smallest mattress size and is narrower and shorter than a twin mattress.

The width of a full mattress is 16 inches more than a twin mattress.

Since the width of a full mattress is more than a twin bed, it may not fit on a twin bed frame.

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