Interesting!
I wonder if you could order one of the beds with a special thinner memory foam mattress, the same used in dinette seats base cushions, and have special backrest & side cushions to make it a couch/day-bed. This way you have a nice place to sit and relax during the day with a huge ottoman across. When it's bed time, simply toss those cushions up front.
Just a thought for a low cost option.