Hi kneeddough,
The better options in the Raleigh/Durham area I’m aware of are listed in post #6 here.
While none of them would be likely to carry memory foam mattresses that were specifically designed to approximate the Rhapsody Breeze, there may be some that your testing indicates would also be just as good or even a better match for you in terms of PPP.
Outside of whether a mattress is a good match for you in terms of PPP … a mattress is only as good as the quality of the materials inside it so regardless of the name of the manufacturer … I would need to know the specifics of what was inside any mattress you were considering to make any meaningful comments about the quality of the materials (see this article). If you can list the specifics of the layers inside one of their mattresses you are considering then I’d be happy to make some comments about the quality of the materials inside it or whether it has any obvious weak links in terms of durability.
Having said that … Enso is one of the Zinus brands that tends to use lower quality/density memory foams in their mattresses. There is more about Enso in post #2 here and a forum search on Enso (you can just click the link) will bring up more comments and information about them as well but in general terms I would tend to avoid them unless you can confirm that a specific model doesn’t have any lower quality materials or weak links that would be common with most of their mattresses.
Phoenix