Hi Meri831,
It means Brooklyn Bedding BestMattressEver which is one of the simplified choice mattresses that are in the list I linked in my last reply. It’s a latex/polyfoam hybrid.
“Foam” is just a generic name that means a material with air bubbles inside it. It can refer to different types of materials. There are three main types of foam (memory foam, polyfoam, and latex foam) that are all different from each other and most mattresses in the industry contain some foam layers. Your Saatva mattress for example includes some memory foam and some polyfoam layers.
Assuming that the materials in a mattress you are considering are durable enough for your body type and meet the quality/durability guidelines here relative to your weight range … the choice between different types and combinations of materials and components or different types of mattresses are more of a preference and a budget choice than a “better/worse” choice (see this article).
Sleep Number is an airbed that uses an air bladder as a support core on the bottom and then has different types and combinations of foam layers (polyfoam or memory foam) on top of the air bladder depending on the specific model.
You can see my thoughts about airbeds in general this article. While any mattress can be a good match for a specific person because each person’s needs and preferences or the criteria that are most important to them can be very different … in general terms I would tend to avoid them unless there is a very compelling reason that an airbed would be a better choice for you in “real life” (outside of the many “marketing stories” that you will hear about them) than the many other options or types of mattresses that are available to you.
If you are committed to an airbed and you are convinced that there are no other types of mattresses that will meet your criteria then there are some other airbed options that are listed in post #3 here that may be much better quality/value choices than Sleep Number/Select Comfort.
The best place to start your research is the mattress shopping tutorial which I linked in my last reply which includes all the basic information, steps, and guidelines that can help you make the best possible choice … and perhaps more importantly know how and why to avoid the worst ones.
Two of the most important links in the tutorial that I would especially make sure you’ve read are post #2 here which has more about the different ways to choose a suitable mattress (either locally or online) that is the best “match” for you in terms of “comfort” and PPP that can help you assess and minimize the risks of making a choice that doesn’t turn out as well as you hoped for and post #13 here which has more about the most important parts of the “value” of a mattress purchase which can help you make more meaningful quality/value comparisons between mattresses in terms of suitability (how well you will sleep), durability (how long you will sleep well), and the overall value of a mattress compared to your other finalists (based on all the parts of your personal value equation that are most important to you).
If you would also like to include some local options in your research that you can try in person before a purchase then if you let me know your city or zip code I’d be happy to let you know about the better options or possibilities I’m aware of in your area.
Phoenix