Hi ahill03,
The only manufacturer I know in San Diego that makes a mattress with no foam at all is Escondido Mattress Factory who can still make an old fashioned innerspring mattress with tufted cotton padding that will last “forever”. You could add a wool topper to this if you wanted to sleep on wool. They are also a member of this site which means I consider them to be among the best quality/value in the country.
http://www.davisworld.com/ also has a mattress that is made with cotton (like a futon) and is wrapped with wool.
Post #4 here also has a list of some of the manufacturers that make innerspring / natural fiber mattresses and if you call them they would be able to tell you if there are any retailers in your area that carry them
Phoenix