Hi hartmabd,
Unfortunately I don’t have a list of specific mattresses that are on the floor of the retailers or manufacturers that are listed in the various lists throughout the forum (it would be more than anyone could keep up with in a constantly changing market and would soon be out of date) so you would need to check the options on the list to see what they currently have on their floor (or could make for those that can make custom designs).
While the “feel” and performance of the mattress is both objective and subjective and would depend on the type and firmness the latex (and to some degree the base layer and cover/quilting) … the most similar design in the Dreamfoam/Brooklyn Bedding lineup would be the Aloe Alexis here which also has 6" of latex in the comfort layers. If you knew the ILD of the 6" of latex in the Verlo then you may be able to approximate it with the Aloe Alexis (the top layers of a mattress are the most important part of the initial “feel” of the mattress) although the polyfoam support core is also thicker and there may be a few other differences between them that would also affect how they compared. The Aloe Alexis also has more options to customize the latex layers both before and after a purchase.
It may also be possible to “approximate” the Verlo mattress with a different design that for some people would have a similar feel (there is more about “matching” one mattress to another in post #9 here).
There is really no way to answer “comfort” questions on an individual level based on “theory at a distance” because there are too many unknowns, variables, and preferences involved in terms of the people involved and the specifics of the mattress design regardless of thickness (see mattress firmness/comfort levels in post #2 here).
While you wouldn’t “bottom out” on 6" of latex … it may not be the best match for you in terms of PPP. In some cases you may be able to order a mattress with 6" of latex and then “upgrade” to a thicker mattress with a thicker cover if it didn’t work out for you if that was an option that a particular manufacturer offered and this would be well worth discussing with them when you talk with them about your comfort and design choices. There is more about the pros and cons of thicker layers or thicker mattresses in post #14 here that can give you some insights about some of the “theory” involved.
Phoenix