Sleepy's is now Mattress Firm
Sleepy's is now Mattress Firm

Twin XL Size Bed & Mattress Dimensions & Measurements: Width & Length

Twin XL Mattress Dimensions are 39" x 78"


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Twin XL, or extra long, is the most common mattress size found in college dorms. The additional 5" in length (compared to a twin sized mattress) accommodates taller sleepers. Twin XL mattresses fit comfortably in smaller rooms because they take up minimal space.

Pros: While the 80" length allows taller individuals to sleep comfortably, this mattress still takes up little space in a bedroom.

Cons: he width of a twin XL size mattress is not suited for couples. Additionally, bedding options and availability for these mattresses is often limited, and may be difficult to find.

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