Hi chip,
I don’t think it’s ever a great idea for anyone to recommend a specific mattress brand or model for someone else … especially without a reference point of specific mattresses you have tested that work well for you … because the many differences and variables in body types, sleeping style, preferences, physiology, age, health conditions, and sensitivities that make one mattress suitable for one person and completely unsuitable for the next. This also means that there is no formula that can possibly be more accurate than your own careful and objective testing or if this isn’t possible then alternatively longer more detailed conversations with a retailer or manufacturer that can give you some insights into what others in their customer base that are similar to you have generally done well with “on average” (assuming you fall within their “averages”).
Post #1 here though has the basic information, steps, and guidelines that can help you learn how to make the best possible choices based on your own personal needs and preferences and budget criteria.
Phoenix