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Twin XL vs Full: What Is the Difference?


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December 20, 2022

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The first step to buying a new mattress is to know your mattress needs. Those with large room spaces have options for a Queen or California bed size. Sleepers with smaller bedrooms or restricted budgets may prefer smaller variations such as twin or full. Now you might be wondering what is a twin or full? Well, we have your back!

A twin XL measures 38 inches and 80 inches with a surface area of 3040 square inches, a full mattress on the other hand is 54 inches wide and 75 inches long with a surface area of 3,975 square inches. A twin xl is best suited for single sleepers compared to full which is ideal for couples. 

So, through this blog, we will walk you through the major differences between twin XL vs full beds and the factors to consider when uncovering the bed sizes for your room. Keep reading for an in-depth understanding of twin XL mattress sizes and full bed size.

What Is the Difference between Twin XL vs Queen?

There is a difference of 22 inches between a traditional Twin XL vs Queen mattress. A Queen mattress measures 60 inches by 80 inches, whereas a Twin XL mattress measures 38 inches by 80 inches. Both the mattress share the same width however, it’s the length that’s the game changer amongst the two.

Below added is a table of comparison. Have a look to understand the fundamental difference between Twin XL vs Queen.

Parameters Twin XL Full
Length 80 inches 75 inches
Width 38 inches 54 inches
Surface Area 3040 sq. inches 4050 sq. inches
Recommended room size 8 feet by 10 feet 10 feet by 12 feet
Recommended for Tall people / Single sleepers / Guest rooms Tall people / Couples / Smaller bedrooms

What Is a Twin Size Mattress?

Twin XL, as the name says, is longer than the standard twin by 5 inches. It measures 38 inches by 80 inches. The extra space makes it a fabulous option for growing teenagers or adults with longer legs. 

Twin XL mattressizes are ideal for those looking out for compact bed options such as for children’s rooms, college dorms, studio apartments, guest rooms, and spare bedrooms. This bed size can perfectly accommodate single sleepers over six feet, preferring sufficient legroom. 

If you have two or more children, you can even use twin XL for bunk beds, which also leaves space for furniture or maybe to allow them to make it a play area whenever needed.

What Is a Full Size Mattress?

Just in case you want a bed mattress for bigger rooms in your home, a full size mattress should be your go-to option. A full size or double mattress meets the needs of a single adult under 6 feet besides providing enough space for easy movements. Full beds also work for couples, although they may find it a little cramped. The length of a full bed mattress measures 75 inches, while the width of a full mattress is 54 inches, making it the most versatile option for bigger rooms or shared sleeping areas. 

A full mattress when compared to a queen mattress, is 5 inches shorter and 6 inches less wider. Queen mattress is best suited for couples who want a luxurious space when having some love moments. 

Plus, full beds are more common than twin XL beds, so you won’t have any difficulty finding the right accessory for your bed.

Twin XL vs Full: Pros and Cons

Now that you know what Twin XL and Full-size mattresses are, it’s time to look out for the pros and cons of each. 

Here it goes:-

Twin XL

As Twin XL beds tend to be longer than full-size mattresses, they can be the right choice for adults with longer legs or those looking for cost-effective solutions. 


  • Can accommodate in small or compact bedrooms 
  • Pricing is cheaper compared to other mattress types
  • More legroom for tall people


  • Less surface area than a full size
  • As it is uncommon to find twin Xl, bed accessories are difficult to get
  • Can only accommodate a single adult

For those with relatively few concerns about the surface area, buying a twin xl compared to a full mattress can be a super saver deal without compromising on the bedroom space. 

Full beds

Full beds have a larger surface area, so they are an out-and-out choice for those with bigger bedrooms or even shared sleeping arrangements. 

Full beds have a larger surface area, making them an excellent alternative for bigger rooms or shared sleeping arrangements. Since full beds are more common than twin XL beds, you won’t have to hunt for sheet sets or other accessories.


  • Easily accommodate two adults 
  • Works well for larger bedrooms
  • Commonly available, so you won’t have to hunt for bed sheets or other accessories


  • Price is a bit higher compared to twin XL
  • Offers restricted space to tall sleepers 

Full mattresses are a bit costlier than twin XL mattresses, but they offer more width and so more space for easy movement and positioning.

Factors to Consider When Deciding Between a Twin XL or Full Mattress

Before you choose between a twin XL or full, here are some pointers to consider:


Buying a mattress is a huge investment, and many may have a restricted budget. If you want to go easier on the wallet, twin XL is the alternative. For the most affordable full mattress, you can expect to pay $200-$399, while luxurious fulls may cost you a bit more over the cost of a comparable twin XL. 

In short, a twin XL is the best pick for single sleepers with a finite budget. 

Your Height

Height is another condition that may alter your choice of full vs twin xl bed sizes. The length of the twin XL is 80 inches, while that of a full is 75 inches. So certainly, the 5 inches extra length can be an easy option for single sleepers over six feet. Using a full will feel cramped in terms of space for legroom. 

The twin XL offers room to spare for single adults or growing teenagers. 

For taller couples, upgrading to a queen or king mattress may be the option for more space with your partner. 

Room Size

twin xl vs full room dimensions illustration

The size of your bedroom is yet another factor that helps decide the mattress size. The rule of thumb is that the breadth of your mattress should not be more than half of the breadth of your room. 

A twin XL mattress is best suited for rooms at least 8 feet by 10 feet. The breadth of twin XL is 38 inches, making it an apt option for narrow bedrooms 7 feet wide or more. 

On the other side, a full mattress works the best for a bigger bedroom, 10 feet by 10 feet or even larger. 

We recommend measuring the space before buying a bed and keeping around 24 inches of extra space on each side between the bed and wall or furniture. 

Twin XL: Studio apartments or narrow bedrooms

Full: Bigger rooms

Sleeping Partner

Do you share your bed with a partner or co-sleep with your child or pet? If so, consider a full between twin or full. A twin XL will likely be small for two sleepers. In fact, a full bed also feels pokey for some couples, but a good option for single parents with a child or pet otherwise. 

Plus, if you are a single sleeper but have a small pet who dozes off on the foot of a bed, twin XL can also solve your problem as it offers enough legroom. 

Depending on how much space you need, you can also go for variations of king or queen. 


While considering the bed size, keep in mind the cost and availability of the bedding accessories. Just like the bed mattresses price, the Twin XL accessories are pricey and have less availability, so few choices in short. 

In addition, twin XL bedding accessories are uncommon, so you may have to juggle finding them in stores. Although the sheet sizes and costs may vary, the best part is that you can use the standard pillow size with both.

Should I get a twin xl or full bed?

A comfortable mattress is responsible for a good night’s sleep and a better lifestyle. Before buying a perfect mattress, consider all the differences between a twin xl and full. Instigate by making a checklist of your requirements, such as usage, number of people with whom you need to share your bed, surface areas, room size, and budgetary restrictions of course! Just to ease out your process, we have shared everything above that will guide you to select the most comfortable sleep mattress size for you and your loved ones. 

Here is to wishing you a healthy night’s sleep!


A twin XL is 38 inches wide and 80 inches long while a full mattress covers 53 inches in length and 75 inches in breadth. So, in short, a twin XL is five inches longer and a full is fifteen inches wider. The total surface area of a twin XL is 3040 square inches while that of a full is 3975 square inches, which means more space.

The only difference between a twin XL and a full is in the dimensions which affect the choice of takers. Twin XL beds are longer than full beds but less wide otherwise. A Twin XL is suitable for single taller sleepers needing more legroom. The full on the other hand is best for shorter sleepers or couples who share the bed. 

A twin XL sheet will not fit a full bed because of the difference in dimensions. The two beds require their own sheet sizes so they don’t slip out of the bed.

Usually twin sheets can fit a twin XL bed, but the trick is to use twin xl fitted sheets so they don’t slip off while you toss and turn.

Yes two adults can comfortably sleep on a full bed but they might feel cramped or pokey if both toss and turn a lot. For most couples, a larger queen or king-size is the perfect fit.

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