This set works perfectly for my grandchildren.  I bought two memory foam 6â mattress for them, they fit as they should.  The low profile doesnât consume the small room. Assembly was super easy, no need to drill any holes due to missing or misdrills from manufacturer.  These were definitely a great buy for my needs.  When not in use for grandkids, I make it up as a daybed, the cat and my Blue Heeler both think itâs their room and take it over.