Twin XL Size Bed Dimensions

Written by Zulekha Nishad

Last Updated June 13, 2024

As you are looking for a brand-new bed for your dorm or studio apartment, you will find that there are different sizes available to choose from. There may be times when you are interested in knowing what the dimensions of a twin XL size bed are. This article will provide you with that information and more. By understanding the dimensions of a twin xl, you can make an informed decision on whether or not it is the right size for your needs.

Key Takeaways:

  • Twin XL is a popular bed size preferred by college students and tall individuals due to its extended length of 80 inches.
  • The standard dimensions of a Twin XL bed are 38 inches wide and 80 inches long, which makes it longer than a regular Twin bed and narrower than a Full-size bed.
  • The Twin XL mattress is a good fit for small bedrooms and apartments, as it provides enough sleeping space for one person without taking up too much floor space.
  • Twin XL bedding and accessories are widely available in most bedding stores and online retailers.
  • When choosing a Twin XL mattress, it's important to consider factors such as the room size, number of sleepers, bed frame size, and budget.

twin xl size bed dimensions

What Is a Twin XL Bed?

A twin xl bed, also known as a twin extra-long, measures 38 inches wide by 80 inches long. This makes it a popular option for tall individuals or for rooms with limited space, as the extra length allows for more room to stretch out while still taking up less floor space than a full or queen sized bed.

latex mattress

Twin XL beds can also be used in pairs to create the same size sleeping surface as a king bed. This makes them a versatile choice for those with limited space. While they may not be as common as standard twins or queens, twin XL mattresses provide an effective solution for taller sleepers and those living in small spaces.

twin xl mattress size

Twin XL Size Mattress Dimension Chart

Dimensions in inches - 38 X 80 inches
Dimensions in cm - 96.5 X 203.5 cm
Dimensions in feet - 3.16 X 6.66 feet

Twin vs. Twin XL - What's the Difference?

It's time for a new bed, and you're debating between a twin vs twin XL. Both are viable options for children or single adults, but there are still some key differences to consider. So what sets them apart?

Standard twin mattresses measure 38 inches by 75 inches, making them suitable for one person sleeping alone. On the other hand, a twin XL is slightly longer at 38 inches by 80 inches. This five-inch difference may not seem like much, but it can make a big difference for taller individuals who have trouble fitting comfortably in a standard twin bed.

twin vs twin xl

What Should You Consider Before Choosing a Twin XL Mattress?

Before you buy a twin xl mattress, there are certain factors that you must take into consideration. This includes:

Bed Frame Size

A bed frame is a base that holds and supports a mattress while also raising it off the ground.

The bed frame size for a twin XL mattress is 40 to 43 inches by 82 to 85 inches. It's important to consider the size of your frame before buying a twin xl mattress because having mismatched sizes can result in an unstable or uncomfortable sleeping surface.

A frame that is too small will leave parts of the mattress hanging off the edge, while a frame that is too big can leave gaps on the sides. In both cases, this can lead to discomfort or injury. Plus, if you have a larger frame than necessary, it can make your bedroom feel cramped.

Number of Sleepers

Because a twin XL can only comfortably accommodate one person, it might not be the most practical choice for couples or families with multiple children.

Sharing a twin XL could potentially lead to discomfort and inconvenience, as well as uneven wear and tear on the mattress. On the other hand, a queen or king size bed can better accommodate multiple sleepers without sacrificing personal space. So before purchasing a twin XL, really think about how many people will be using the bed on a regular basis.

a tall adult sleeping comfortably on a twin xl bed


It's also wise to consider your budget before making a purchase. Otherwise, you might end up spending more money than you can afford, leading to financial stress and potential problems with making payments.

Additionally, considering your budget allows you to determine how much you're willing to spend on a mattress and helps narrow your search to options within that price range. It can also prevent impulse buying, as taking the time to think about your budget gives you the opportunity to carefully weigh the pros and cons of each option. This will enable you to make a more informed decision.

A twin size may be more affordable in the short term, but a twin XL may be worth the extra investment if you're taller than average. That said, only you can decide which option fits your budget and needs best. So don't be afraid to shop around and compare prices before making your final decision.

And don't forget about sales! Whether it's Black Friday Mattress Deals or a store-specific event, waiting for such lightning sales and offers can score you some major savings on your new mattress.

twin xl bed in a compact room

Pros of Twin XL Size Bed

Perfect for Growing Teens, College Students, and Single Adults

Twin XL beds may be smaller in size, but they pack a lot of perks. For one, growing teens will appreciate the extra length - no more waking up with their feet hanging off the end of the bed.

In addition, those heading off to college dorms will find that twin XL mattresses fit perfectly into the limited space. And for single adults living in smaller apartments or homes, twin XL mattresses provide all the comfort and support without taking up too much room.

More Leg Room

Have you ever found yourself hanging off the edge of your bed, desperately trying to stretch out your legs? Say goodbye to cramped nights and hello to some much-needed extra leg room with a twin XL mattress.

natural and organic latex mattress topper

Twin XL size mattresses offer an extra five inches of length compared to regular twin mattresses, providing more room for longer legs to stretch out comfortably. And while they may be best known for their use in college dorm rooms and as bunk bed mattresses, anyone can appreciate their extra legroom.

twin xl bed for taller sleepers

Compact Size

When it comes to finding the perfect mattress for a small bedroom or college dorm room, twin XL is where it's at. It's long enough for tall individuals to stretch out comfortably, but its compact size leaves room for other furniture and even allows for easy mobility through tight spaces.


Twin XL mattresses are a popular choice for budget-conscious shoppers. Not only are they more affordable to purchase, but they also require less expensive sheets and bedding. And let's face it - do you really need all that extra space?

Cons of Twin XL Size Bed

Not Suitable for Couples

Don't let the "XL" in twin XL fool you – this bed size may work for individuals, but it certainly isn't suitable for couples. Sure, it's longer than a standard twin and may provide enough room for one person, but it's still only 38 inches wide.

Not to mention, any slight movement from one person causes the whole bed to wobble and potentially wake up their sleeping partner. If you value your relationship (and a good night's sleep), investing in a larger bed is definitely worth it.

Twin XL Size Bed and Mattress Accessories

While twin XL mattresses are a perfectly suitable size for single sleepers, there are various accessories that can truly enhance the comfort and convenience of your bed. This includes:

Mattress Topper

You might have heard of a mattress topper, but do you know what it is and how it can enhance your sleeping experience? A mattress topper is a thick layer that covers your twin XL bed and adds an extra layer of cushioning. It can improve the comfort and feel of your bed by providing additional support for painful pressure points and reducing motion transfer.

a mattress topper placed on a twin xl bed

Mattress toppers also play a great role in extending the life of your mattress by acting as a protective barrier against wear and tear. The type of topper you choose – memory foam, latex, down, or wool – will depend on your personal preferences and needs.

Mattress Protector

Often overlooked but incredibly important, a mattress protector serves as a barrier between your twin xl bed and potential spills, dust, sweat, and other forms of wear and tear.

Not only does this extend the life of your mattress, but it also helps keep it clean and comfortable for longer. In addition to protecting against liquids, some mattress protectors are also designed with allergen-blocking properties to prevent dust mites, pet dander, and other allergens from settling in your bed.

And because mattress protectors typically feature soft, moisture-wicking fabric, they can also improve the feel of your sleep surface - providing an extra layer of comfort while wicking away any excess heat or sweat.

Pillows, Sheets, and Pillowcases

Don't forget about pillows, sheets, and pillowcases - they might just be the key to getting a good night's sleep. Pillows provide support for your neck and head, while sheets and pillowcases add an extra layer of softness between you and the mattress.

When choosing the right bedding, it is important to consider the material and thread count. Soft materials like cotton or silk are generally preferred, while a higher thread count often means a smoother feel on the skin.

Additionally, pillows come in multiple sizes and firmness levels, so finding ones that work for your personal preferences can also greatly improve your twin xl mattress's overall comfort and feel.


Now come the comforters - They are designed to provide an extra layer of warmth and cushioning, helping to make your twin XL mattress more comfortable for a better night's sleep. They also add softness and plushness to the bed, creating a cozy atmosphere for rest and relaxation.

a tall girl sleeping on a dorm room

Other standard mattress sizes and dimensions - Know which mattress size is right for you

(Width x Length)
(Width x Length)
(Width x Length)
Twin 38 X 75 inches 96.5 X 188.0 cm 3.16 X 6.25 feet
Twin XL 38 X 80 inches 96.5 X 203.5 cm 3.16 X 6.66 feet
Full 54 X 75 inches 134.5 X 190.5 cm 4.5 X 6.25 feet
Queen 60 X 80 inches 152 X 203.5 cm 5 X 6.66 feet
King 76 X 80 inches 193 X 203.5 cm 6.33 X 6.66 feet
California King 72 X 84 inches 183 X 213.5 cm 6 X 7 feet

In addition to a twin xl size mattress, there are five other standard mattress sizes in the US. Check out the dimensions and peculiarities of each one of them below.

Twin size mattress

A twin mattress, also known as a single, is the smallest standard size available for mattresses. Measuring 38 inches wide and 75 inches long, it is most commonly used for children's beds or for adults who prefer sleeping alone in a smaller space.

Whether you are furnishing a small guest room or buying your child their first "grown-up" bed, a twin mattress can be a convenient and budget-friendly solution.

However, it may not be the most comfortable option for taller individuals, as there is less room to stretch out and move around. When this is the case, it's best to choose the twin xl option.

Twin size bed dimensions

  • Dimensions in inches: 38 X 75 inches
  • Dimensions in cm: 96.5 X 188.0 cm
  • Dimensions in feet: 3.16 X 6.25 feet

Full size mattress

A full size mattress, also known as a "double" mattress, is the most common choice for adults sleeping alone. Measuring 54 inches wide and 75 inches long, it allows plenty of room to stretch out and get comfortable.

Though it may seem small compared to larger mattress options like queen or king sizes, a full size can actually be more spacious than a twin bed when sleeping alone.

Full mattresses are also a popular choice for guest rooms or children's bedrooms thanks to their space-saving qualities and affordable price point.

Full size bed dimensions

  • Dimensions in inches: 54 X 75 inches
  • Dimensions in cm: 137.16 X 190.5 cm
  • Dimensions in feet: 4.5 X 6.25 feet

Queen size mattress

A queen mattress is one of the most popular sizes for adults, providing ample room for individuals to comfortably stretch out and sleep. Measuring 60 inches by 80 inches, a queen size mattress offers approximately six inches more width and five inches more length than a full size mattress. This added space can make all the difference in terms of comfort, allowing couples to sleep without feeling cramped or crowded.

Apart from being the most couple-friendly mattress, queen size mattresses offer enough surface area for single sleepers to comfortably spread out, roll over, and change positions during the night. They are also a great option for guest rooms and smaller master bedrooms, offering a good balance between space-saving and comfort.

Queen size bed dimensions

  • Dimensions in inches: 60 X 80 inches
  • Dimensions in cm: 152.4 X 203.2 cm
  • Dimensions in feet: 5 X 6.66 feet

King size mattress

A king size mattress is one of the largest standard options available, measuring 76 inches wide by 80 inches long. That's about 16 inches wider than a queen size mattress, making it an excellent choice for couples who want extra room to stretch out. It's also suitable for single sleepers who simply prefer more space for themselves.

Keep in mind that a king size bed will require a larger bedroom to fit comfortably, as well as special bedding and sheets. In terms of price, a king size mattress tends to be on the higher end due to its larger dimensions. But for those seeking maximum comfort and spaciousness, a king size may be worth the investment.

King size bed dimensions

  • Dimensions in inches: 76 X 80 inches
  • Dimensions in cm: 193 X 203 cm
  • Dimensions in feet: 6.33 X 6.6 feet

California king size mattress

Measuring 72 inches wide by 84 inches long, a California king mattress is slightly narrower but longer than a traditional king size mattress. This makes it a popular choice for tall individuals or couples who want extra legroom while sleeping.

However, it can be harder to find sheets and other bedding that fit a California king bed. In addition, moving this large and heavy mattress can be a challenge, so it's important to carefully measure your bedroom space before making the investment in a California king size bed.

California king size bed dimensions

  • Dimensions in inches: 72 X 84 inches
  • Dimensions in cm: 183 X 213.5 cm
  • Dimensions in feet: 6 X 7 feet

twin xl mattress for a comfortable night's sleep


To sum up, a twin XL bed is a great choice for taller sleepers or those who want extra room to move around in. Its dimensions are 38 X 80 inches, making it 5 inches longer than a standard twin mattress. If you have the space, a twin XL bed is a great addition to any bedroom. When shopping for sheets and comforters, be sure to keep this additional length in mind so that you purchase items that will fit your brand-new bed properly.


What are the dimensions of a twin XL mattress?

Dimensions in inches - 38 X 80 inches

Dimensions in cm - 96.5 X 203.5 cm

Dimensions in feet - 3.16 X 6.66 feet

How Much Bigger Is a Twin XL From a Twin?

The twin XL mattress is about 5 inches longer than a traditional twin size. While most adults will fit comfortably on a twin size, those who are taller may find that the extra length of the twin XL offers more room to stretch out. Despite the added length, both sizes have the same width.

Is a Twin XL as Long as a Full?

A twin XL is longer than a full size bed, measuring 38 inches by 80 inches compared to 54 inches by 75 inches for a full. This extra length makes a twin XL suitable for taller individuals who might find themselves hanging off the end of a regular full bed.

So while a twin XL may offer more length for taller individuals, those wanting more room for two people to comfortably sleep may prefer the added width of a full size mattress.

What Is the Difference Between a Twin and a Twin XL Mattress?

The main distinction between a twin and twin XL mattress lies in length. A standard twin mattress measures 38 inches by 75 inches, while a twin XL measures 38 inches by 80 inches. This extra five inches may not seem like much, but it can make a big difference for taller individuals who need more legroom.

Can Two Adults Fit on a Twin XL?

Twin XL beds are not intended to fit more than one person. At only 38 inches wide and 80 inches long, a twin XL bed offers less sleeping space than a standard full or queen sized bed. In fact, the extra length is meant for taller individuals and does not offer enough room for two adults to comfortably sleep side by side.

Do Two Twin XL Mattresses Make a King?

Yes, two twin XL mattresses can actually make a king-sized bed. By placing the mattresses side by side and using a king-sized sheet set, the bed should feel just like a regular king-sized mattress.

What Size Comforter Fits a Twin XL Bed?

The recommended comforter size for a twin XL bed is 68 inches wide by 90 inches long. Some might be tempted to splurge on the bigger option- a full/queen size comforter. But resist the urge, as that extra length will hang off the edges of your bed, giving you a less-than-cozy sleeping experience. And while a twin size comforter might seem like it would do the trick, it will only leave part of your mattress bare and feeling cold at night.

Should I Use a Mattress Topper With My Twin XL Mattress?

Yes, a mattress topper is always worth the investment. It might seem like an extra expense, but think about it this way: you spend a lot of time (and money!) on your twin XL mattress, so why not give it the additional support and protection it deserves?

A mattress topper can provide added support for your spine and reduce pressure points, leading to better sleep and improved overall comfort. Plus, it acts as a barrier between your mattress and factors like sweat, oils, and spills - essentially prolonging the life of your twin xl mattress.

What Is the Most Ideal Time to Buy a Twin XL Mattress?

Look out for major sales events like Black Friday and Cyber Monday Mattress Deals. Brands and mattress manufacturers often offer deep discounts on bedroom furniture during these times, making it the perfect opportunity to snag a deal on your dream twin XL mattress.

Another option is to keep an eye out for holidays like Memorial Day and Labor Day, which also tend to have big sales on mattresses and other bedding products.

However, don't feel pressured to wait for a sale - if you find the perfect twin XL mattress at the right price, there's no reason not to make your purchase immediately and start enjoying some much-needed restful nights.

Is It Possible to Use a Twin Size Sheet With a Twin XL Mattress?

The answer is no. A twin XL mattress is longer than a standard twin. Therefore, while a twin sheet may initially seem to fit, it won't provide proper coverage and may even come off in the middle of the night.

Always choose sheets specifically labeled for your mattress size to ensure a comfortable and secure fit.

Are Twin XL Mattresses Suitable for Bunk Beds?

Twin XL mattresses are actually the perfect fit for bunk beds! Not only do they provide plenty of space, but they also have just enough length to fit comfortably without affecting the stability of the bunk bed. Plus, the twin XL size allows for easy maneuvering and switching of beds if needed.

Is a Twin XL Bed Worth It?

If you're a single sleeper in need of some extra length, a twin XL bed is definitely worth it.

With their extra length, tall individuals no longer have to worry about their feet hanging off the end of the bed. And because they offer ample space for one person to spread out, twin XL beds can provide a luxurious sleeping experience. Plus, their smaller size means they take up less room in the bedroom, leaving more space for other furniture or activities.

natural and organic pillows

Related blog posts:

1. Mattress Sizes Chart and Bed Dimensions Guide

2. Kids Mattress Sizes

3. Twin Vs Twin XL Mattress Size Comparison

4. A Detailed Guide on Full vs. Queen Size Mattresses: Which One Should You Sleep On?

5. Twin vs. Full vs. Queen Mattress Size Comparison

Disclaimer: What is said in this article has been referenced from multiple sources and is intended only for educational and informational purposes. Please note that no content in this article is a substitute for professional advice from a qualified doctor or healthcare provider. Always consult an experienced doctor with any concerns you may have regarding a health condition or treatment, and never disregard any medical suggestions or delay in seeking treatment because of something you read here.