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Twin vs. Twin XL Beds: What’s the Difference?

By: Christina Davies
Updated on: April 05, 2024

Discovering the ideal bed size for your room can be a vital decision, especially when it comes to choosing between Twin and Twin XL beds. While they may seem to differ by just 5 inches in length, there are essential factors to consider before making a choice. In this comprehensive comparison, we will explore the nuances of Twin vs. Twin XL beds to help you show which size best fits your needs.

Whether you are outfitting a cozy guest room or setting up a comfortable dormitory, understanding the distinctions between these two popular bed options can make all the difference in achieving a perfect night’s sleep. Join us as we delve into the features and advantages that each size brings to the table, guiding you toward the optimal choice for your living space.

Difference Between Twin And Twin Xl Mattress

Twin mattresses and Twin XL mattresses may seem quite similar, but they have a crucial difference that sets them apart. When it comes to dimensions, a Twin mattress typically measures 38 inches in width and 75 inches in length. On the other hand, a Twin XL mattress shares the same width as a twin xl mattress, with dimensions of 38 inches, but offers an additional 5 inches in length, measuring 80 inches long.

It’s not uncommon to feel perplexed by the small 5-inch difference between these two mattress sizes. However, understanding the distinction is essential to choosing the right fit for your needs. With this comprehensive comparison guide of Twin vs. Twin XL mattresses, you’ll gain clarity on their unique features and be better equipped to make an informed decision.

Twin Vs. Twin XL Mattress Size Comparison Chart

Here’s the Twin vs. Twin XL Mattress Size Comparison Chart:

ParametersTwin MattressTwin XL Mattress
Length75 inches80 inches
Width38 inches38 inches
Surface Area2,850 square inches3,040 square inches
Price Range$599 – $1799$849 – $1949
Ideal forTeens, Toddlers, ChildrenSingle adults, Taller teens, college students
Occupancy2 kids or 1 teenager1 tall adult or teenager
Recommended Room Size7 feet by 10 feet8 feet by 10 feet

This comparison chart outlines the key differences between a Twin and a Twin XL mattress in terms of dimensions, price, occupancy, and ideal usage. It can help you make an informed decision based on your specific needs and preferences.

What Is A Twin-Size Mattress?

A Twin size mattress is a type of bed mattress that is designed to accommodate one person comfortably. It is one of the standard mattress sizes and is commonly used for single sleepers, including children, teenagers, and adults, who prefer a smaller sleeping space. Twin mattresses are also known as Single or two-twin mattresses in some regions.

The dimensions of a typical Twin size mattress in the United States are approximately 38 inches (96.5 cm) by 38 inches wide and 75 inches (190.5 cm) long. However, there are variations in dimensions based on different countries and regions.

Twin-size mattresses are a popular choice for smaller bedrooms, guest rooms, and bunk beds in dorm rooms. They offer enough space for one person to sleep comfortably while being compact enough to fit into tighter spaces. For couples or individuals who prefer more sleeping space, larger mattress sizes like Full, Queen, or King are available.

Pros and Cons of Twin Size Mattress

Here are the pros and cons of a Twin Size Mattress:


  • Space-saving: Twin-size mattresses are compact and ideal for small bedrooms, children’s rooms, dormitories, or guest rooms with limited space.
  • Cost-effective: Twin-size mattresses are generally more affordable than larger mattresses, making them a budget-friendly option.
  • Easy to move and handle: Due to their smaller size and lighter weight, twin mattresses are easier to transport, rotate, and flip, making maintenance and cleaning more manageable.
  • Versatility: Twin mattresses are versatile, suiting both kids and adults and thereby serving various sleeping needs.
  • Fits in bunk beds and daybeds: Twin mattresses are commonly used in bunk beds and daybeds, providing comfortable sleep for kids and teens.


  • Limited sleeping space: The main drawback of a twin mattress is its smaller sleeping surface. It may not be suitable for taller individuals or those who prefer more space to move around while sleeping.
  • Not suitable for couples: Twin mattresses are not recommended for couples, as the size is too small to accommodate two adults comfortably.
  • Less comfort and support: Compared to larger mattress sizes, twin mattresses may offer less overall comfort and support due to their reduced surface area and thinner profile.
  • Limited design and material options: Twin mattresses might have a more limited selection of designs, materials, and features than larger, more popular sizes.
  • Transitioning to larger beds: As children grow, they might outgrow the twin-size mattress, requiring an eventual upgrade to a larger size.

What Is a Twin XL Size Mattress?

A Twin XL size mattress is a type of bed mattress that is longer than a standard Twin size bed mattress but maintains the same width. In terms of dimensions, a Twin XL mattress typically measures 39 inches in width and 80 inches in length. This makes it 5 inches longer than a regular Twin mattress, which usually measures 39 inches by 75 inches.

Twin XL mattresses are commonly used in places like college dormitories, hotels, and guest rooms, where space might be limited, but the extra length can provide more comfort for taller individuals. They are a common option for adjustable beds and split king bed arrangements, where two Twin XL mattresses are positioned next to each other to create a king-sized bed.

It’s worth noting that a Twin XL is different from a Full-size mattress, which is wider than two twin beds (measuring 54 inches in width) and the same length as a Twin (75 inches). When choosing a mattress size, it’s essential to consider your specific needs and the available space in your bedroom.

Pros and Cons of Twin XL size mattresses

Twin XL size mattresses have specific advantages and disadvantages compared to twin size beds and to other mattress sizes. Here are some pros and cons of a Twin XL mattress:


  • Extra Length: Twin XL mattresses are longer than standard twin mattresses, making them a better fit for taller individuals. It’s a popular choice for college dorms and shared bedrooms.
  • Space-Saving: Twin XL beds are narrower than larger sizes like Queen or King, making them a space-saving option for smaller bedrooms or apartments.
  • Versatility: They are suitable for both children and adults, making them a versatile choice for various age groups.
  • Cost-Effective: Twin XL mattresses tend to be more affordable than larger sizes, making them budget-friendly.


  • Limited Space for Sharing: While Twin XL mattresses can comfortably accommodate a single sleeper, they might be too narrow for two people to share comfortably, especially if one or both sleepers are active at night.
  • Not Ideal for Couples: If you are sharing your bed with a partner, a larger mattress size like Queen or King would provide more space and comfort for both individuals.

Which Size is Best for You?

When faced with the choice between twin and twin XL mattresses, several crucial factors should guide your decision:

Cost & Availability

Twin mattresses are generally more affordable than twin XL, with a price difference ranging from $50 to $150. If you’re on a tight budget, opting for a twin mattress can help you save money. Additionally, keep in mind that accessories designed for twin XL may also be pricier. It’s important to mention that not every mattress maker provides the twin XL choice, and this also applies to producers of bed accessories and frames.

Height & Sleep Position

One of the main considerations when choosing between twin XL and twin is the sleeper’s height. The Twin XL offers an additional 5 inches of leg space, beneficial for taller sleepers or those standing over 6 feet tall. While a standard twin’s 75 inches length might seem sufficient, it’s essential to consider that your pillow takes up space as well.

Growing Children

For parents buying beds for their children and teenagers, twin mattresses are a popular choice. It’s crucial to think about the mattress’s longevity, typically lasting 7-10+ years, and the possibility of the child outgrowing the bed. If your child is tall for their age, opting for a twin XL ensures the mattress will remain suitable for many years to come.

Bedroom Dimensions

Both twin and twin XL mattresses are relatively small and fit well in most spaces. However, if you live in a small studio apartment or have a compact bedroom, choosing a king mattress over a standard twin may help create a less cramped feeling in the room.


In conclusion, the difference between Twin and Twin XL beds lies in their dimensions and suitability for different age groups and living spaces. Twin beds are great for children’s bedrooms and smaller rooms, while Twin XL beds offer added length, making them suitable for college dorm rooms or for taller individuals and college students. Understanding your specific needs and preferences will help you make an informed decision when selecting between these two popular bed sizes.

Remember to consider factors such as space availability, comfort, and mattress compatibility before making your final choice. Whether you opt for a Twin or a Twin XL bed, both options provide comfort and support for a good night’s sleep.


Is a Twin XL bed longer than a Twin bed?

Yes, a Twin XL bed is 5 inches longer than a standard Twin bed, providing additional legroom.

Can adults sleep comfortably on a Twin bed?

While Twin beds are more suitable for children and young adults than single beds, some petite adults may find them adequate.

What is the best mattress type for a Twin XL bed?

The best mattress type depends on individual preferences, but memory foam and hybrid mattresses are popular choices.

Can I use Twin bedding on a Twin XL bed?

Twin bedding may not fit properly on a Twin XL bed due to the extra length split king mattress, so it’s better to use Twin XL bedding.

Are Twin XL beds suitable for couples?

Twin XL beds are not the ideal choice for couples, but they can work for those who prefer room size and more compact sleeping space.

Do I need a special bed frame for a Twin XL mattress?

Yes, using a bed frame designed for a Twin XL mattress ensures the same bed has proper support and fit.


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