Hi ilsungna,
Hopefully you’ve had the chance to read the mattress shopping tutorial here (there is a longer and a shorter version) which has all the basic information, steps, and guidelines that you will need to make the best possible choice … and know how and why to avoid the worst ones.
If you have completed steps 1 and 2 (some basic reading, deciding on the materials and types of mattresses you are most interested in trying, and deciding on your budget range) then the next step would be to decide on some knowledgeable, experienced, and transparent local manufacturers or retailers so you can do some local testing to get a better sense of the types or materials and mattresses that you tend to prefer.
Unfortunately only you can feel what you feel on a mattress and there are too many unknowns, variables, and personal preferences involved for anyone to be able to recommend or suggest a specific mattress or manufacturer based on specs (either yours or a mattress), health conditions, individual circumstances, or “theory at a distance” (see mattress firmness/comfort levels in post #2 here). I’m certainly happy to help with “how” to choose but the specifics of “what” to choose will always be based on your own individual research and testing and on all the specific criteria and parts of your personal value equation that are most important to you.
There is also more about the different ways to choose a mattress that is the most suitable “match” for your specific needs and preferences and how to identify and minimize the risks involved in each of them in post #2 here. Local testing (hopefully using the testing guidelines in the tutorial) is generally the most reliable way to know whether any mattress is a good “match” for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) but if you are working with an online retailer or manufacturer then the best source of more “personalized” guidance will always be the manufacturer or retailer themselves because they will know more about “matching” their mattresses to different body types and sleeping styles and individual circumstances than anyone else.
There is also more about the most important parts of the “value” of a mattress purchase in post #13 here that can help you make more meaningful comparisons between mattresses but if you are in a higher weight range I would make sure that the materials in any mattress you are considering are a suitable density range and are durable enough for your weight.
There is more about how Casper, Tuft & Needle, and Leesa (which are all “one firmness fits all” mattresses) compare in post #3 here and the rest of the same topic.
Dreamfoam is a little different from any of these because they have many mattresses available not just one in a range of different materials and styles and many of them also allow you to customize the firmness level before a purchase and with some of their mattresses that have exchangeable layers you can also customize the firmness level after a purchase as well. They also have a sister company called Brooklyn Bedding which also has component latex mattresses that allow you to exchange the comfort layers but they use higher quality base layers than most of the Dreamfoam mattresses which may be more suitable for your higher weight range.
I would be very cautious about using other people’s reviews or experiences on a mattress (either positive or negative) as a reliable source of information or guidance about how suitable a mattress may be for you or the durability of a mattress and in many cases they can be more misleading than helpful because a mattress that would be a perfect choice for one person may be completely unsuitable for someone else to sleep on (see post #13 here).
If you let me know your city or zip code I’d also be happy to let you know about the better options or possibilities I’m aware of in your area.
Phoenix