Hi odrunr,
There are many PLB retailers that ship across the country and I don’t have a list or them or the prices they charge (the internet prices are the MAP or minimum advertised prices so you would need to talk with them to find out their actual prices) but a google search should bring up many of them.
PLB used to allow dealers to ship right from the factory directly to a customer which means that if their actual selling price was lower than the MAP pricing they would end up being less but they no longer do this so a retailer needs to order them and reship them to their customer which can incur double shipping. Some PLB dealers that may be worth talking to about their prices and that may be able to ship PLB mattresses across the country include …
http://www.eco-mattress-store.com/
Sometimes the best PLB prices may be available locally and you can search for the local retailers that are closest to you on the PLB retail store finder here.
NOTE: Pure Latex Bliss (PLB) is now called Pure Talalay Bliss (PTB) and you can see the updated specs of their mattresses in post #2 here.
Phoenix