Dorm Mattress Size. The dormitory mattress is the most durable of our choices. However it will be about five inches longer. The average college dorm mattress size is twin xl.
It offers the residential mattress feel that has made it a college favorite for decades. Yes full size beds and double beds are the same thing.
A full mattress is 15 wider than a twin bed but the same length.
Most dorm beds are a size known as twin xl where the xl stands for extra long not extra large. So your dorm bed will be the same width as a typical twin bed. 4 6 out of 5 stars 236. Note that these are five inches longer than the standard twin size.
