Hi phewd,
I’m glad you had a chance to test some latex (particularly Talalay latex) because it’s certainly different from memory foam and each person will have their own preferences about the type of material and “feel” that they prefer. There is more about the differences between latex and memory foam in post #2 here.
There are some comments about the OMF Serenity memory foam mattresses in this topic and in this topic.
The specific construction and materials in both of them are …
Serenity:
1.5" of 8 lb memory foam
.5" ventilating layer
2.5" of 5 lb memory foam
6" 2.25 lb polyfoam
Serenity Plush:
2.0" of 8 lb memory foam with holes punched in the layer
.5" ventilating layer
3" of 5 lb memory foam
2" of convoluted 1.9 lb polyfoam
3" of 2.25 lb polyfoam
They both use high quality materials and there are no lower quality materials or weak links in either of them so if either one of them is a good match for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) then they would certainly be a good quality/value choice and would be well worth considering.
I would tend to avoid any of the major manufacturers (see the guidelines here) or any mattress where you aren’t able to find out the information listed here to make sure there are no lower quality materials or weak links in the mattress. They tend to use lower quality materials than I would be comfortable with or for the mattresses they sell that you are able to find out the quality/density of the materials inside it and use higher quality more durable materials they aren’t usually in the same “value” range for most people as many other options that are available fromsmaqller manufacturers that use the same or higher quality materials and are in lower price ranges. There is more about the most important parts of the “value” of a mattress purchase in post #13 here that can help you make more meaningful comparisons between mattresses.
Some parts of choosing a mattress are certainly more subjective (such as the “feel” of different mattresses or materials), others are a combination of subjective and objective (such as careful testing for good pressure relief and alignment), but others are more objective (such as checking the quality of the materials and components inside a mattress). There is more about the different ways to choose a mattress (online or locally) that can help you identify and minimize the risks involved in each of them in post #2 here.
Phoenix