No. Many companies offer a split queen bed, which is two 30 by 80 inches mattresses. When placed side by side, these beds equal 60 by 80 inches, the size of a standard queen size mattress. But, this size is not the equivalent of two twins since twins measure 38 by 75 inches. Split king mattresses are the equivalent of two twin XL mattresses, which measure 38 inches by 80 inches each. When placed side by side, two twin XLs beds measure 76 by 80 inches, the size of a standard king size mattress.