IKEA VITVAL is a space-saving twin bunk-bed frame with a white powder-coated steel structure and light-gray recycled-polyester fabric guardrails instead of metal rails.
It has a soft, playful look, high sides on the top bunk, a bottom bunk that can double as a sofa, and a ladder that mounts on either side. The frame uses about 30% less metal than similar bunks, includes wood slats, and takes two twin mattresses (max ~5½" thick). US size is roughly 77.5" L x 40.5" W x 63.75" H, with about 36" between beds and 9" of under-bed clearance. Frame only; mattresses sold separately