Donna thank you for the link, that is exactly what I am trying to accomplish.
I was in a rush for the long weekend so I did manage to make something. I went to the hardware store and bought a ¼" wood & 1x2 for the legs. They cut everything to size so when I came home all I had to do was drill the pieces together (the cost was $25).
The wood basically slides under the bed when we are not using it (the bed is permanently set up). I set the legs so the 2” was running parallel to the bed. This way it really did not get in the way during the day. I also lucked out because I saved all the memory foam cut from the mattress we got last week. The memory foam is 19” by 38’??? so I made two. This way when the foam can double as a backrest during the day.
This was just a quick solution for this camping season.
I do want to find a more permanent & cleaner looking extension. Something that does not change the original look of the boler
but can still accommodate the extension. I am about to go on a trip so I am also making note, that I should take pictures of my crafty bed extension.