Purchased on Craigslist 4-5 years ago. This is one very solid piece of kickass, multi-level-indoor-jumping-playground twin bed. It is truly battle-tested, and has seen it’s share of rambunctious minions, but there are no no stickers, stains, paint, etc.
Top mattress sits on a thin “bunky board”. Trundle is on casters and supported by solid plywood. The mattresses aren’t bad at all. You can take ’em or I can toss ’em.