Just what I was looking for to transition my 3 1/2 year old to a larger bed. Also will be great for his sister when she moves out of her crib, great bunk bed for younger kids. The bottom bunk is ground level and easy for kids to crawl in and out of, while the top bunk is low enough to not have to worry about my kids jumping off it (which I know is inevitable). Easy assembly (about an hour or two) and sturdy product!
We are using a 8 inch mattress on the bottom but are considering a 6 inch one on top, but an 8 inch would work - mattress is about the same level as the top of the lower rail on the top bunk.