Hi drachen9d8,
I switched your post to a new topic of its own so your questions and my replies don’t get mixed in with another member’s topic.
Just in case you haven’t read it yet … the first place to start your research is the mattress shopping tutorial here 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 (Posture and alignment, Pressure relief, and Personal preferences) 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.
There is much more information about the new breed of online mattresses that I call “simplified choice” mattresses in the first post in this topic and there is also more information about each of the specific mattresses I’m aware of in the category (including Casper and Leesa) in the second post of the same topic.
The better options or possibilities I’m aware of in and around the Hartford area (subject to the quality/value guidelines I linked earlier in this reply) are listed in post #4 here.
Phoenix