What is Twin Extra Long?

Twin Extra Long (Twin XL) is a mattress size that is longer than a standard twin.


When it comes to choosing a mattress for a sleeping space, the size is one of the most important factors to consider. Twin Extra Long, commonly referred to as Twin XL, is a mattress size that is specifically designed to offer a bit more length than its standard twin counterpart. This extra length makes it a popular choice for taller individuals or for those who prefer more leg room while sleeping.

The Twin XL measures approximately 39 inches wide by 80 inches long, which is 5 inches longer than a standard twin mattress that measures 39 inches wide by 75 inches long. This additional length can make a significant difference in comfort for those who find standard twin mattresses too short. Besides being beneficial for personal use, Twin XL mattresses are also commonly found in college dormitories, given their space-efficient size while still accommodating taller students.

When incorporating Twin XL beds into interior design, designers must consider the available space and the overall layout of the room. Due to their elongated nature, these beds can offer unique opportunities for space planning and furniture arrangement, especially in narrow rooms or multi-use spaces. They can be paired with appropriate bed frames, bedding, and other bedroom furniture to create a cohesive and functional sleeping area.


Twin XL beds are often utilized in personal bedrooms, college dormitories, and guest rooms. Their extra length makes them suitable for taller individuals or those who prefer more sleeping space. In interior design, they are chosen for their ability to fit into narrow rooms while maximizing the sleeping area.


  • How much longer is a Twin XL mattress than a standard twin mattress?

    A Twin XL mattress is 5 inches longer than a standard twin mattress.

  • Why are Twin XL beds popular in college dormitories?

    Twin XL beds are popular in college dormitories because of their space-efficient size that accommodates taller students without taking up much room.

  • Can Twin XL beds fit standard twin bedding?

    While standard twin bedding can be used on Twin XL beds, it's recommended to use Twin XL-specific bedding to ensure proper fit and coverage, especially for fitted sheets.

Practical Application

When selecting a Twin XL bed for a bedroom, it’s important to measure the room carefully to ensure a good fit. Consider the bed's placement and how it will interact with other pieces of furniture in the room. Opt for Twin XL-specific bedding to achieve the best look and function, and don't forget to accessorize with decorative pillows and throws for a cozy, inviting space. To make the most of the available space, explore storage options such as under-bed storage containers or multifunctional furniture pieces.