Twin XL Size Mattresses

A Twin XL mattress is 38 inches wide by 80 inches long (3’2” x 6’8”). It’s the same width as a standard Twin but 5 inches longer - a difference that matters significantly for taller sleepers and is the reason Twin XL is the standard size in most US college dormitory frames. In centimeters, that’s approximately 96.5 cm x 203 cm.

Leesa offers a limited lifetime mattress warranty that covers the following:

• Deterioration of the mattress resulting in a visible indentation greater than one and a half (1.5) inches that is not associated with an indentation or sag as a result of an improper or unsupportive foundation or base.
• Any physical flaw in the craftsmanship of the mattress that causes permanent damage to the memory foam despite proper set-up and normal use.
• Any physical flaw in the craftsmanship of the cover, including seams and zipper assembly.

Please see our warranty page for full details, terms & conditions.

Every Leesa mattress comes with a 120-night trial. After 30 days of sleeping on your new mattress, if you're not happy with your purchase, the friendly folks on our Comfort Crew can help walk you through the process of returning and refunding.

Whenever possible, we donate any returned mattresses to a 501(c)(3) organization or one of our charity partners. One of Leesa's missions is to be a positive force in the world, so if we can donate a mattress in good condition rather than disposing of it in a landfill, that's the route we're going to take.

For more details, check out our full trial period and return policy.

A Twin mattress measures 38” x 75”; a Twin XL measures 38” x 80”. The same width, but 5 inches longer. That extra length makes Twin XL the preferred choice for taller sleepers (over 6 feet) and is the standard size in most college dormitory frames. For children and average-height adults, a standard Twin provides the same sleeping surface at a slightly lower price point. Both sizes share the same width, so they’ll fit the same frame if it’s adjustable.

Yes. Twin XL is the standard mattress size for most US college dormitory beds. Before buying, confirm your dorm’s frame dimensions, but Twin XL is the safe default. A Leesa Twin XL ships directly to campus or your home address and sets up without tools or a box spring.

A Twin XL is 38” x 80”; a Full is 53” x 75”. Twin XL is narrower but longer. For tall sleepers, the extra 5 inches of length in a Twin XL matters more than the Full’s extra 15 inches of width. For solo sleepers under 6 feet who want more room to move laterally, a Full is the better choice.

A Queen is 60” x 80” - the same length as a Twin XL but 22 inches wider. Both are ideal for tall sleepers. A Twin XL preserves considerably more floor space in a small room or dorm. A Queen is worth the larger footprint for solo sleepers who move around at night or who occasionally share the bed.

Yes. Two Twin XL mattresses placed side by side measure 76 inches wide by 80 inches long - the same dimensions as a standard King. This split King configuration is popular with couples who want different firmness levels or independent adjustable bases. Leesa Twin XL mattresses are compatible with adjustable bases, making this setup easy to put together.

A Twin XL mattress requires a frame with an interior sleeping surface of approximately 38” x 80”. Most standard Twin XL frames, adjustable bases, and platform beds are built to these dimensions. Standard Twin frames (75 inches long) are too short for a Twin XL mattress - confirm the frame length before ordering. Leesa’s adjustable bases start at Twin XL size.

Most standard bunk beds are built for Twin mattresses (75 inches long), which means a Twin XL (80 inches) is too long for most bunk frames. If you’re buying for a bunk bed, a standard Twin is the right size. If your bunk frame is specifically designed for Twin XL, confirm the interior length before ordering.

A Twin XL mattress is 38 inches wide by 80 inches long, or approximately 96.5 cm x 203.2 cm. Mattress height varies by model; Leesa Twin XL mattresses range from approximately 10 to 13 inches depending on the model. Height affects clearance for under-bed storage and compatibility with frames that have low side rails. See our sizes & weights support article for more information.

Yes. Twin XL is the smallest Leesa mattress size compatible with adjustable bases. This makes it a popular choice for sleepers who want head or foot elevation for reading, snoring reduction, or circulation, as well as couples building a split King setup with independent adjustable bases on each side.

Leesa Twin XL mattresses are available across a range of price points depending on construction and features. Every model ships free and comes with a 120-night trial and a limited lifetime warranty. Visit the individual product pages for current pricing.