The Dream (10 inch) hybrid mattress with pocket springs is not a bad mattress at all. I think it is a good blend of medium and slightly firm. You still, however, have the softness from the top layer. The top of the mattress has a nice knitted fabric. 
This is a full and it was just over 50 pounds. It was slightly heavy, but still easy to manage. It started to expand immediately out of the packaging. However, waiting 48-72 hours is highly recommended.  This allows it to fully expand.  The mild  odor goes away within a day or two without any issues. 
Overall, I do not think this is a bad mattress. It is a mixture of the coil mattresses and the memory foam.