Hi TimothyP,
Unfortunately, due to the changes and turnover in businesses in the last few years, we no longer provide geographic listings for mattress manufacturers and retailers other than TMU Trusted Members see TMU directory here, though this post from 2016, and this post from this year may prove illuminating.
As far as the Aireloom Luxetop Mattress is concerned, this is a ultra luxury mattress; similar to the Charles P Rogers Estate 5000, but they are likewise not very transparent with the density and thickness of the layers. As you stated in your previous post compression has been an issue with the Estate 5000 and in previous mattresses you purchased, so you should check with them if you decide to go with Aireloom to see how its’ shipped for your own peace of mind. With their higher price points, I’m sure it can be very frustrating to receive the mattress and find it does not fully expand as advertised!
Most of the Trusted Members of the site ship anywhere in the U.S., and in addition to the Members @Phoenix mentioned to you in the reply to your previous post, in California you have quite a few choices: BioSleep Concept and Foam Sweet Foam are in Riverside, Flexus Comfort is in Covina, and there is also Mattress Makers in San Diego.
Hopefully someone in your area that has had a personal experience with a good quality/value mattress that is similar to what you like sees your post and chimes in with some additional options.
~ Basilio