Building fold up beds -need ideas

My wife and i recently purchased a Sure-Trac Cargo Trailer 7 X 14 to haul our ATV in and then camp in . Used it last week with our minor modifications . Instead of just jumping in and building I am getting ideas and then after my fall busy season I plan to spend my down time this winter making our improvements . We insulated the ceiling and installed a thin white panel . Anyway we plan to pull the plywood off the walls , add a window to each side insulate and panel and we already have an RV style door on order . An awning will also be added . Back to the beds . Last week we used 2 cots to sleep on but I want to build in to beds that I can hinge off the walls for 2 separete beds and then have the option of folding up another board to make the bed the full 81 inches of the width . I want 2 beds whereas a buddy and I can use it for a hunting camp and a full bed when it is just her and I . I have some ideas for the fold up beds and I have searched here looking for pictures . Any pics or ideads will be appreciated . ..............We have a 24 ft travel trailer but can't haul our atv and the trailer too. Last week we went 1700 miles and really liked camping out of it . Even with the atv in back of it we laid out our foam and sleeping bags and slept in the front have saving 100 on a motel .............I have really enjoyed seeing how nice some of you have done building your camper conversions . I like sma and simple . Last week we had 20 hours of rain at one stretch and it was nice being out of the rain to sleep and cook. Thanks Again !!!!!