The daybed itself is beautiful.  I ordered this for when the grandchildren visit.  There isn't any help from Wayfair choosing mattresses.  A regular twin mattress fits on top.  I am still on the hunt for one that will fit the trundle.  It wasn't too hard to put together for people who are used to assembling items.  There is room for improvement on the directions.    The two heavy boxes arrived a day earlier than expected and I would have appreciated the notice so the boxes could have been delivered to my garage vs. the driveway with rain coming.