Hi baycyd,
As you can see in mattress firmness/comfort levels in post #2 here … my goal is to help the members here with how to choose but not what to choose. There are too many variables and unknowns and differences between people for any “theory at a distance” to be an effective way of making a good mattress choice for someone else out of the thousands that are available.
As you can see in post #13 here … I also wouldn’t spend too much time reading reviews which aren’t really what I would call “mattress research”.
The “best” place to start and the single most important post on the forum is post #1 here which has all the basic information, steps, and guidelines you will need to make the best possible choices. If you follow the steps one by one then you will do well.
You have some very good quality/value options in the San Francisco area with good people that are knowledgeable and will give you good guidance. The better ones I’m aware of are listed in post #2 here.
Phoenix