You are not asking a BIFL question as BIFL mattresses are 100% latex. And not everyone's cup of tea. You are asking a use case question.

All of what you said helps you zero and you are wasting your and everyone's time. You and your wife need to take your ass down to a mattress store that has these brands and try them out in person and make a decision based on your budget, comfort and heat/cool of the mattress type. 0 people on the internet can tell you if any of these are too firm or soft or hot or cold which are the use cases of purchase....hell....odds are between you are your wife, you will likely disagree.

Now if you thinking, "Hey, asshat...I can't try out a Casper in a store, gargle bees!" Well, you have two choices:

1. Try out all the ones you can live and pick from those.
2. Play Russian Roulette with an internet mattress, but make damn sure you read their return policy 4 times.