Hi biscuitmachine.
Welcome to our Mattress Forum! 
While there is no requirement that you ask advice only from Expert members you can certainly post any new question in an already existing thread that is not associated with an Expert … by searching our forum for a topic that has a subject close to (or touches on) what you are looking for as detailed in post #1 here item 1 on the list. We are in the process of consolidating and condensing the large amount of data and information that we provide and during this time the two ways in which new visitors can have their questions answered are outlined in the post -linked above. We have found that most of the answers have already been extensively answered in many threads on the forum and that it behooves the visitor to do some initial baseline reading such as the Mattress Shopping Tutorial here and search for questions that have already been answered in their area(s) of interest.
Rest assured that I or any contributors, experts or consumer members that have the knowledge, insights or some experience with the particular product or question you are interested will be happy to assist you.
Phoenix