Hey cgibsong002,
Welcome back to the forum

! Thanks for your question.
Just finished testing some mattresses at a local store. Tried some latex, hybrids, and memory foam, and settled on pure foam as our choice. Most were pretty good but there was one mattress in particular that we really liked. Southerland/Englander Osborn. Specs as follows:
2" 5lb gel memory foam
2" 3.5lb copper infused gel memory foam
1.5" (website says 3") hd comfort lock foam?
7" hd comfort lock power foam?
My wife is 5' 120 and i am 5'11 170. Surprisingly it seemed like this mattress was perfect for us both. It seemed to keep good alignment both on back and sides for both of us, and what we enjoyed about this more vs the other ones we tried was how conforming it was. Felt like "true" memory foam that really molded to our bodies and did a great job of providing support all around. Edge support was fantastic. Cover felt nice and cool. The salesperson mentioned it was probably the 5lb layer on top that gave that feeling of being more "conforming" vs the other ones we tried that didn't really seem to wrap around us as much.
Congrats on your new mattress shopping adventure

! Nice work on making the store visits and happy to hear that you've found some good options. Thanks for including the specs for the model of interest, as well as some details of both your personal stats. Southernland is a well-known older U.S. manufacturer of mattresses, and their collections can be found in showrooms across the country. Which local store have you visited that is carrying their models? The
Osborn
is featured on their site; however, the densities of the foam layers are not provided, only the foams used and their thicknesses are listed, so I am not able to verify the provided comfort layer specs nor find details for the HD foam layers. Perhaps the showroom can provide those for you to evaluate the durability potential of the support core.
So overall it felt great, good price. My concerns: the manufacturer doesn't have great reviews online. Questions about durability (we're looking for a new one precisely because our name brand sagged so bad). And also somewhat cautious of something so "plush" will hold up or simply become too soft as it breaks in.
You and your wife are both well within normal BMI ranges, and I'm guessing that you both are back and side sleepers, as you mention testing the mattress in those positions. If you have durability concerns based on reviews, you will want to also confirm the densities of the support layers too.
HD foams
are often used in the support layers of mid-range and even rather expensive mattresses under higher quality materials such as latex or high-quality memory foam. Phoenix recommends an HD foam weighs 1.5 -1.8 lbs. per cu. ft. as a suitable density for support layers, providing an appropriate grade and durable choice. You mention being "
somewhat cautious of something so "plush" will hold up or simply become too soft as it breaks in": can you expand on this concern a bit? As your current mattress has developed sag, what type is it and how old?
One last thought on reviews: other consumers' comments on product knowledge and customer service of a business can be helpful; however, take caution when considering more personal points of view regarding how you would "feel" versus what they may on the same mattress or how suitable/ durable a mattress may be for you. Your
personal stats
of height, weight, body shape, and sleeping preferences combined will determine which components and construction uniquely work best for you.
Looking for any guidance about this particular manufacturer, quality of materials, etc. I'm hesitant to just go ahead and make the purchase after having such bad experiences with buying in stores in the past. Should we try something like a Tempur-pedic to compare?
As you may know, we do not make manufacturer recommendations outside of the strictly vetted
TMU trusted member program
, but we can provide a listing of our business members who specialize in memory foam mattresses for your review:
You are welcome to reach out and ask your specific questions requiring more expertise to any of these fine memory foam specialists and they will be more than happy to help out. Good luck with your research and looking forward to your updates

.
Thanks,
Sensei