Hi Basil,
One of the attractions of the “one firmness choice for everyone” style of mattresses is that they simplify the buying and decision making process which can be very attractive to some people and may be one of the most important parts of their “personal value equation”. With any retailer or manufacturer that only offers a single mattress though you will find that they will be the “best” match for a relatively small percentage of the population, a “good” match for a larger percentage, an “OK” match for a larger percentage yet, and for those that it isn’t a “good enough” match … they have a great return policy that lets you start all over again with choosing another mattress with little risk outside of the time you spent trying the mattress or returning it.
While it may be worthwhile to sleep on it for a few weeks because all new mattresses will go through an initial break in period where the cover will stretch and loosen a little and the foams will lose any of their “false firmness” and soften a little and you will also go through an adjustment period with any new sleeping surface that can change your sleeping experience (see post #3 here), if you decide you are in the last group and it’s not a “good enough” match for you then it’s an easy matter to return it (or arrange to donate it to a local charity).
The first place to start is the mattress shopping tutorial here which includes all the basic information, steps, and guidelines that you will need to make the best possible choices … and know how and why to avoid the worst ones.
If you are in a much heavier than average weight range then some of the information in post #3 here and the posts it links to will be helpful.
Your adjustable bed will work well with most foam mattresses (latex foam, polyfoam, and memory foam) that aren’t too thick (more than about 12" or so although this will depend on the specifics of the mattress) and with most pocket coil mattresses as well so you have many choices that would be suitable for your adjustable bed.
Some innersprings (such as most pocket coils and some other types of innersprings that have hinges built in) will be fine with an adjustable bed (you would need to check with the retailer or manufacturer) and I personally wouldn’t rule out any type of mattress category ahead of time. There are some good quality innerspring mattresses available although I would avoid the major brands or any innerspring mattress which uses lower quality or “unknown quality” materials in the comfort layers because the quality of the materials in the comfort layers are generally the weakest link in a mattress in terms of durability (see the guidelines here).
I would also avoid hotel mattresses and you can see some comments about them in post #3 here.
I would be very cautious with airbeds as well and you can see some comments about them in this article.
Latex is a very high quality and durable material but with any mattress category you will find a very wide range of different designs and firmness levels. Some may be a great match for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) and some may be completely unsuitable for you to sleep on.
Two of the posts in the tutorial that are particularly important to read are post #2 here which has more about the different ways to buy a suitable mattress that can help you assess and minimize the risk involved in each of them 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 comparisons between mattresses.
The tutorial also includes two links to many of the better online choices I’m aware of and if you let me know your city or zip code I’d also be happy to let you know about any of the better options or possibilities I’m aware of in your area.
Phoenix