Purchased as a space saving option for my guests. The grey color is a little different then that pictured online. Much lighter- with a almost green tint. It’s comfortable and after 4 months of use don’t regret it. I would recommend having it on a rug the bottom trundle seems to move more than I would like. 
I bought a 8 inch  memory foam mattress for the top and a 6 inch memory foam mattress for the bottom.