Twin XL mattress
A Twin XL mattress is a size variation of a twin size mattress. It is 5 inches longer than a standard twin size mattress and measures 39 inches by 80 inches. This makes it a popular choice for taller individuals who need the extra length, or for college dorm rooms where space is limited. Twin XL mattresses are also commonly used in bunk beds and trundle beds. They offer the same width as a standard twin mattress, but with the added length for added comfort.