Hi richard.meyer,
There is more about the pros and cons of convoluted layers in post #2 here but any type of foam can be convoluted.
While some people may be unusually sensitive to some materials due to certain medical issues such as MCS (multipal chemical sensitivities) or may be sensitive to some materials that the large majority of people would be fine with and these types of exceptions are really impossible to predict … if the foam has a reliable certification for harmful substances and VOC’s (see post #2 here) then outside of these more unusual circumstances or outside of those people who may prefer more natural materials for “personal” reasons (rather than “safety” reasons) … they would certainly be “safe enough” for the very large majority of people to sleep on.
[quote]I found a description for a 13" twin mattress that reads -Talalay latex foam on the surface
2" high density convoluted foam (for $569, 6" all latex mattress is $899 and I’m looking to buy 3) [/quote]
There is more about the most important parts of the “value” of a mattress purchase in post #13 here 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 (based on all the parts of your personal value equation that are most important to you).
I would always make sure you know the specifics of every layer and component in any mattress you are considering so you can make sure that there aren’t any lower quality materials that would be a weak link in the mattress (see this article and the quality/durability guidelines it links to)
I removed your link because it doesn’t contain any useful information and this is one of many sites that tends to spam their site for search rankings.
Hopefully you aren’t connected with the site and I’m not sure why you quoted this but it sounds more like gibberish to me than anything else.
Phoenix