We have a new 16-49-1 and have found the mattress has an almost 2 cm height difference between the large and smaller piece. We complained about it on its first service last week and was given a new mattress with (you guessed it) the same problem. We cant work out whether the smaller part of the mattress isn't thick enough or the draws it rests on aren't high enough. Has anyone else had this problem and got it resolved thru Jayco's warranty? As it stands you simply cant sleep 2 adults on the double mattress near the fridge. Considering we bought the Expanda to sleep 4 adults , feeling a bit ripped off at the moment.