Tent on top bunk . Source: Delightful Distractions - HOME SWEET HOME. Easy DIY using fabric or even sheets. For bottom, build in rod and use curtain hangers or tack Velcro to wood and panel for a more stationary curtain. For top bunk, hang from ceiling.
GREAT boy's room: what a cool bed! Make for my bedroom. the dog could get the bottom bunk. leaves more room up top for me! Make it into a beach hut. need to figure a way of getting the sound of waves in the room LOL