Hi CentralPA,
Post #2 here and post #6 here include links to several forum lists which may be helpful and would likely be closest to you.
Both Dutch Craft and Restonic may have some better quality/value options but with any purchase … outside of making sure you have done some careful and objective testing for PPP (Posture and alignment, Pressure relief, and Personal preferences) … a mattress is only as good as it’s construction and the quality of the materials inside it and the most important part of a mattress purchase is making sure that you know the quality of all the layers and materials inside the mattress. Once you know this you can use the guidelines in the tutorial post to identify any possible weak link in the mattress in terms of durability and make more meaningful comparisons with other mattresses … regardless of the name of the manufacturer on the label.
Phoenix