We received our Hastens mattress, and after about a week in the new bed, I can report back to the group.
We sleep much better. We both find it harder to get out of bed in the morning because we are sleeping more deeply. I also find that I am not having the back and shoulder pain that I had before as well. So far a win, and we will have to keep in mind all of the maintenance for the topper.
Thanks for the input.