Hey everyone. Newbie here with a question. We just bought a 2012 Jayco 1206 pop up and are in the process of cleaning it up and getting it ready to camp. The mattresses that are in there are in OK shape but I wanted to replace them with new ones. I’m looking for the best / cheapest replacement mattresses that I can find but the sizes don’t seem to be standard mattress sizes. The rear seems to be a short queen and the front is a bit larger so I’m assuming it’s a king. Any advice?