Below is the description of a mattress on amazon. Anyone familiar with this brand. The top reads that it is "1.5 inches of suer soft hyperflex foam??? and then the core just reads “base foam” ??? any input would be appreciated.
The 10" Ultra Plush Latex mattress with Bamboo cover. This mattress is available in multiple firmness levels to meet the needs of every customer. The Ultimate Dreams Latex mattress features 3 inches of Talalay Latex foam that instantly contours to each unique curve of your body for exceptional orthopedic support and pressure relief. The quilted bamboo cover contains 100% biodegradable bamboo fibers with 1.5 inches of super soft hyperflex foam. Softer than cotton but with four times the moisture absorbency of cotton for a drier, cooler more comfortable sleep. This mattress also features a 6 inch high performance 1.5lb density base foam with anti-bacterial properties.
The first place I would start your research is the mattress shopping tutorial here which has all the basic information, steps, and guidelines that can help you make the best possible choices … and includes the answers to most of your questions as well.
Dreamfoam is one of the most discussed manufacturers on the forum and a forum search on Dreamfoam (you can just click the link) will bring up over 1500 posts that mention them. Forum searches on “ultimate dreams” or on any specific mattress you are considering will also bring up more information and feedback about them.
They are a sister company to Brooklyn Bedding (see post #4 here and post #3 here) and both of them are manufacturing members of this site which means that I think very highly of them and they compete well with the best in the industry in terms of their quality, value, service, and transparency.
Outside of all the information in the tutorial post … there is more about assessing the “value” of a mattress purchase in post #13 here that will be helpful.
The guidelines here can also help you assess the quality of the materials in a mattress relative to your budget range so you can identify any weak links in a mattress and make more meaningful comparisons to other mattresses.
They will provide you with any specific information you may need about the type and density of any of their base layers but for the most part their base foam is a firmer polyfoam that is 1.5 lb density.
This is a thinner layer of soft polyfoam that is used in quilting layers that is used to affect the surface “feel” of a mattress. There is more about quilting foam and other types of quilting materials in post #12 here.
If you like the feel and performance of Talalay latex and you are in a lower budget range then one of the Dreamfoam mattresses would certainly be well worth considering.