I remember, not that long ago, when I was in college any my dorm had an extra long twin mattress. Now my daughter is heading to college, and I have learned that they still use that size mattress. What I remember most about my college dorm mattresses is how uncomfortable they were. I do not think I had a single good night’s sleep in my 3 years in the dorms. So, now I am considering buying my daughter a good quality extra long twin mattress. I have found a few different options to buy them on line and I think it will be a wise investment for all of us!