After weeks of online research, I decided on this mattress.  It seemed to have everything I was looking for (plush, hybrid, cooling, two layers of inner springs, edge support, bed in a box, immediate shipping).  My only concern is that the brand is somewhat obscure.  The online reviews seemed consistently good, so I decided to take a chance.  So far, I'm delighted! It arrived in about a week, was easy to unpack, and seemed to open up 100% in minutes.  No off gassing.  I was afraid that it would be too plush, but it seems just about perfect.  Made in the USA was a plus.  Highly recommend!