Squeezing a Full Size Bed into the Space

One of the things that I wanted to deemphasize was the placement of the bed. Too many Recreational Vehicles feature the beds taking up so much room, and I wasn't a fan. I also didn't want to give up the comfort of a large plush mattress so I've been looking at clever ways to shoehorn one in the available room so I've made some renderings of those ideas.

What a Full Size (75L x 54W) Mattress would look like in the space.