I just received a new, custom-cut Talalay latex mattress for my 2009 Flying Cloud. After doing extensive research, I ordered from Mattress Insider. The ordering process, shipping and installation was totally painless and the mattress arrived in a large FedEx box. The custom cut was perfect and the mattress quality and comfort are miles ahead of the dreadfully hard foam that came with the Airstream (no amount of foam topping can help the OEM bed).
These custom-cut beds can go as high as $1500 to $3000. I paid only $713 with free shipping. I'm now looking forward to no more sleep-related complaints from the wife.
I highly recommend Andrew Craft and team. Here's the link.
RV Latex Mattress