Loft bed from the Swedish company Compact-living. The concept is particularly great for a small or tiny house because it eliminates walls below. While the ladder doesn't look super fun to use the lighting and bed solution is innovative and fun.
Working Alone with Plywood - Woodworking Techniques - American Woodworker Tie a loop in each end of a 12 ft length of plywood. With the sheet up against a wall, slip a loop under the bottom corners. Normally you'd lift it from he same side as the rope.