Hi coastfab,
I’m glad you found us and welcome 
Hopefully you’ve had the chance to read the tutorial post here which has all the basic information and links to the most important posts in the forum that can help you make the best possible choices … and know how and why to avoid the worst ones … all in one place.
Once you are at step 3 … then the better options and possibilities I’m aware of in the Spokane and Coeur d’Alene areas are listed in post #4 here.
The tutorial post also has a link to some of the better online memory foam retailers and manufacturers I’m aware of (including Christeli) if you are also interested in considering online options.
Phoenix