I purchased for my adult son who is a big man and likes a firm mattress (all furniture has to be rated for the weight).   The mattress was compressed in a box when Fedex delivered and extremely heavy.  It took two of us to get into the house and take out of the box.  My son loves it and was extremely pleased.  It wasn't as firm as I anticipated, so I'm a little worried if it will stand up with his daily use.   So far so good.