Hello! We are (proud) new owners of a 1986 National Dolphin. After our first real trip, we discovered the top mattress sags into a V. I realize you all have probably hit this topic a million times. But, PLEASE, can you give us some of your ideas? We aren't against having a new mattress made, either. But if it's made the same again, won't we have the same problem down the road? Get it, down the road...? A little road humor after steep mountains. Thanks for your help!
The pic was taken at Gold Bluff Beach, Redwood State/National Park by Orick, CA.