Twin XL Size Bed & Mattress Dimensions & Measurements: Width & Length
Twin XL Mattress Dimensions are 39" x 78"
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.