I do love this new addition to my bedroom.  The mattress is comfortable for me, and I am relatively heavy and tend to sleep hot.  So finding good support that is colder is a great thing.  So why 4 stars instead of 5?  It was a really heavy box and a bear to wrestle with during set up.  Why don’t mattresses come with handles on the sides?  I struggled to grip and turn the thing for 30 minutes wrestling it out if the box and getting it into position.