Hi Marin,
Unfortunately Serta doesn’t provide any meaningful specs about their mattresses (or their hotel mattresses) so the only way to compare one of their mattresses to another mattress would be based on side by side testing or your own sleeping experience. You can read a little more about “matching” one mattress to another in post #9 here but if you don’t know the specific information about your “target” then you would be working completely blind. In most cases it’s better to us
I would also take into account that if you are buying a mattress that doesn’t provide the information you need about the quality of the materials that the odds are very high that they are lower quality and less durable. This means that foam softening and breakdown is much more likely and the more rapid loss of comfort and/or support that goes along with this isn’t covered by a warranty. No matter how a mattress feels and performs when it’s reasonably new … if the materials aren’t high quality (especially in the comfort layers) then it won’t stay that way for nearly as long as a mattress that used higher quality materials.
You can also read more about hotel mattresses in post #3 here and the other posts it links to.
There are too many unknowns, variables, and individual circumstances and preferences for anyone to be able to suggest which specific mattress will work for someone else out of all the thousands of designs that are available on the market with any degree of certainty and for the most part you won’t be able to find out any meaningful information about what is inside many mainstream mattresses anyway but post #1 here has much more about all the basic information, steps, and guidelines you will need to help you with “how” find the “holy grail” of your perfect mattress
In most cases the knowledge and experience of the manufacturer or retailer you are dealing and the options they provide can be one of the most important parts of a successful choice.
If you let me know the zip code or city where you live I’d be happy to let you know of any of the better options or possibilities I’m aware of in your area.
Phoenix