I recently did a mod that a few of you may be interested in as the side dinette when it's setup as a bed is a little narrow for me.
With a mod i seen on a site with a great bed widening mod i thought i would give it a try and i have to say i had great success and really like it alot as it has widened the bed from 24" to 36" and it all comes apart when need to return to either the dinette table (not pictured) or into a couch..... As of this posting i am still waiting to try and find some cushions that match and buying a set from casita
is about $100 for one set (seat and backrest) What i believe i will do is buy two extra firm king size pillows (perfect fit of 72")and use them as backrests with some fancy pillow case covers that should make it look pretty good and then just drop them down in place along the back when the other cushions are pushed out to the front..... I used 1/4 plywood (custom cutout where the dropped down table sticks out a bit) 12" wide X 72" Long and four legs and it is plenty strong (I weigh 185 lbs) and there is no flexing in the plywood..... I also used a very heavy industrial velcro purchased at lowes and for added strength i double wide stapled about every three inches so the velcro sticky back doesn't lift off the plywood in warmer weather(Do not staple the velcro on the fiberglass edge or you will have major damage)....I also rounded the corner at the bathroom so that the door could be opened when needed.
There is plenty of room in the aisle in case you want to leave it setup all the time
pics below explain the process