A standard twin mattress is 39 inches wide and 75 inches long. A length of 75 inches is often too short for many adults, which is why the twin XL was invented. A twin XL is 39 inches wide and 80 inches long. More »

www.reference.com Home & Garden Furniture Beds & Mattresses

In the United States, a standard twin mattress normally measures 39 inches wide and 75 inches long, which is the same length as a standard double mattress. In the United Kingdom and Ireland, the average twin mattress is ... More »

www.reference.com Home & Garden Furniture Beds & Mattresses

A standard twin mattress is 38 inches wide by 75 inches long. A twin XL, or extra-long twin mattress, is 38 inches wide and 80 inches long, according to The Bedding Experts. More »

www.reference.com Home & Garden Furniture Beds & Mattresses

A standard twin bed mattress is 39 inches wide by 75 inches long. A twin bed is made to accommodate one child or one adult. More »

www.reference.com Home & Garden Furniture Beds & Mattresses

A standard twin mattress is 38 inches wide by 75 inches long. A twin XL, or extra-long twin mattress, is 38 inches wide and 80 inches long, according to The Bedding Experts. More »

www.reference.com Home & Garden Furniture Beds & Mattresses

In the United States, a standard twin mattress normally measures 39 inches wide and 75 inches long, which is the same length as a standard double mattress. In the United Kingdom and Ireland, the average twin mattress is ... More »

www.reference.com Home & Garden Furniture Beds & Mattresses

A twin bed is the smallest adult mattress size, and it measures approximately 38 inches wide by 75 inches long. Twin beds and full size beds are actually both the same length. For individuals who are tall but require a ... More »