Special-sized bunk mattress

After doing much research, we designed our built-in bunks for regular-sized twin beds. We wanted to use long twins (like in college dorms) since all of us are tall, but every rental company we contacted said that they didn't have sheets to fit those mattresses.

When we purchased our house it had builtin bunk beds that need narrower and longer than a twin mattress. We ended up having the bottom one custom made by the mattress store on 98 next to Bienvienue (sp?)Antiques. I can't remember the name of the mattress store. The price was very reasonable. The mattress wan't the best, but has held up very nicely for the last 5 years. The top bunk worked with an extra long twin mattress. We found that the deep pocket twin sheets work on the mattresses for rentals.