This is a pic of someone else's rear deck....I have done the same but am now wanting to modify it and need some ideas on how best to do this. I want it to be nice looking and a built-in part of the existing mod....if possible.

What I am wanting is an extension going forward (toward the front of the Jeep) with the back seats layed down. It needs to be flush with the existing rear deck. It needs to be foldable....the back seats do get used regularly.

All this is so I will have a place to sleep when needed....have already slept in it a couple of times and am trying to make it more comfortable.

 

I haven't read them, but there are a couple of threads with comfort tips

Sleep in back https://www.jk-forum.com/forums/show...=sleeping+jeep

and

You can sleep in the back of a JK!
https://www.jk-forum.com/forums/show...=sleeping+jeep