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.
RH Baby & Child's Appliquéd Frame Cotton Canvas Drapery Panel:Appliquéd on three sides with a smart contrasting stripe, our brushed cotton-canvas drapery panel adds a classic, tailored touch to the nursery or bedroom.