Here is wha at I found and what I did to correct the problem with my bed platform.
It is easy to remove, best if you have an extra set of hands for the last couple of screws in the hinges.
My original platform only about a third of the bottom part glued towards the rear of the coach. When anyone would sit on the edge of the bed by the closet failure was going to happen, and it did.
The top of the platform withe the grey mat was only fastened using only the tiny staples.
In my opinion repair was not the best option.
I bought a 4x8 sheet of 3/4 birch plywood and made a new one and it is much better.
Sure it weighs more, but I was still able to pick it up and install it without any problems. The original platform was just not suited for any amount of weight.
The new one can still be lifted with one hand for access to the storage area.
We use the Millard tri-fold mattress that are 31 inches wide by 6 inches thick
And we find them to work well, easy to set up and easy to store. We have two sleeping bags with 2 inch foam that we sleep on top of instead of sheets, easy to wash and dry.
This is how we decided to address the platform failure and the sleeping arrangement we use.
Hope this helps somebody else that may have this issue now or in the future.
Plywood @ The Home Depot $60.00
Trip fold Mattress around $160.00 each on the Amazon.