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Twin XL Vs Split King: Which One Should You Choose?

Regarding mattress sizes, twin XL vs split king is a popular choice that often confuses consumers. Although they sound similar, they have distinct characteristics that set them apart.

In this article, we’ll dive into the world of mattress sizes and explore these two options. Let’s find out and unravel the differences!

Twin XL Vs Split King: Key Features Comparison

Ways To Tell These Beds Apart

For those who do not have much knowledge about mattresses, you will not be able to distinguish the twin XL vs. split king. Don’t worry! We’ve done it for you!


Both Twin XL and split king mattresses have the same length of 80 inches, which ensures that individuals of various heights can comfortably sleep on either bed. But regarding width, there is a difference between the two.

The twin XL measures 38 inches in width. This narrow width allows easy movement and placement in smaller spaces. 

Also, it offers a compact yet comfortable sleeping space with a surface area of 3,040 square inches.

Comparative to a split king mattress boasts a width of 76 inches (twice of a twin XL). With a total surface area of 6,080 square inches, you will have comfortable space for stretching out and moving around during sleep.

Yet, when only considering a single split king mattress, it has the dimensions of a twin XL. So you can combine two twin XL mattresses into a split king.

Read more: Queen Vs Split Queen

Ideal room size

The Ideal Room

The ideal room size refers to the minimum dimensions required to accommodate the mattress comfortably, allowing for ease of movement and placement of additional furniture.

We recommend the minimum room size is 7 x 10 feet for a twin XL mattress. This requirement suits smaller bedrooms, dorm rooms, or guest rooms.

On the other hand, the split king mattresses need a larger room, with a minimum dimension of 12 x 12 feet. The larger room ensures more space and easy movement around the bed.

Read more: Best Daybed Mattresses In 2023

Adjustable features

Adjustable Features

Regarding adjustability, the split king bed offers more flexibility than the twin XL.

The split king size is compatible with an adjustable base, allowing users to customize the positioning of their head, feet, and full-body alignment. This feature benefits individuals suffering from acid reflux, back pain, or snoring.

However, one potential challenge with this mattress model is finding the fit sheet set. Due to its unique size, a standard bed sheet set may not adequately accommodate its configuration.


Who Uses These Beds?

Twin XL mattresses can only be used as single beds; split king mattresses with two twin XL mattresses are ideal for couples with various sleeping preferences.

In contrast, split king mattresses are designed for two adults, allowing each person to have a sleeping surface. Also, it can be suitable for a couple with small children as it provides an extra sleeping surface if needed.

Besides, the split king is favorable for couples who prefer different sleeping positions or need more space to meet their sleeping needs.

In short, the twin XL mattress is best for those who sleep alone, while the split king is designed for couples who want their own sleeping space.


Twin XL mattresses typically range in price from $850 to $1,950. This price range makes it a more affordable option than split king mattresses. 

Split king options, on the other hand, range in price from $1,700 to $3,900. The higher price range is mainly due to the larger size often associated with higher-end models that offer additional features such as an adjustable sole or premium material.

Comparison table

FeaturesTwin XLSplit King
Size80 x 38 inches80 x 76 inches
Ideal Room Size7 X 10 feet12 X 12 feet
Adjustable FeaturesLack of adjustable featuresMany adjustable features
Price$850 – $1,950$1,700 – $3,900

Twin XL Vs Split King:  What Are The Pros And Cons? 

Let’s look at the main pros and cons of these two beds!

Twin XL


  • Affordable
  • Space-saving
  • Versatile
  • High availability


  • Limited sleeping space
  • Limited adjustability

Split king


  • Large sleeping space
  • High individual customization
  • Ideal for couples with different needs
  • Flexible


  • High cost
  • Require large rooms

Read more: Twin Vs California King

Which Should You Choose?

Firstly, a twin XL mattress may be the more suitable option if you are a single sleeper or have limited space in your bedroom.

Secondly, if you sleep with a partner and desire individualized comfort or have different sleep preferences, a split king bed offers the advantage of sleep surfaces.

Besides, it is particularly beneficial for couples having differing sleep needs or experiencing disruptions due to movement or snoring.

Finally, consider the size of your bedroom and the types of mattresses available. The split king could be a viable option if you have ample space and room to accommodate a wider mattress. However, the twin XL may be a better choice if your room is small.

We recommend trying out different sizes in-store or consulting with a specialist to ensure you make an informed choice.


In summary, twin XL vs split king is quite different in size, capacity, adjustability, and price.

The twin XL mattress is designed for single sleepers, offering a compact and budget-friendly option for those with limited space.

On the other hand, the split king bed caters to couples, offering separate sleeping surfaces and customizable settings for each sleeper.

Let us know your choice!


  1. What sheets are for 2 twin XL beds pushed together?

    You would need king size sheets. These sheets are designed to fit two separate twin XL mattresses seamlessly.

  2. Can 2 twin XL make a queen?

    No. The two twin XL combined are slightly wider than a queen bed but shorter.

  3. Are 2 twin beds the same as a full?

    No. A full bed (double bed) is larger than two twin beds combined. A full bed measures approximately 54 x 75 inches, while two twin beds total only 76 x 75 inches.

David Elkie

David Elkie

David Elkie is the CEO at Banner Mattress. He has been in the writing and editing business for the mattress, bedding accessories and décor industries for over 20 years.