We have a ROO, so it may be different with the Jayco, but think it's probably about the same. Your mattress should fold. It stays inside the bunkend when it's closed up. Then tent itself will not fold neatly, so don't worry about that. Ours has some snaps that hold the mattress in place when the bunkend is closed, some have some sort of straps. It's unusual to have to remove the mattress to transport, so check for that fold.
Re the pole, we just lay ours down on a shelf area that's just inside the bunkend - actually a part of the bed area.
One VERY IMPORTANT thing to remember when closing up the bunkend is that you absolutely need to make sure every little piece of fabric/canvas/bedding is tucked inside. If you aren't meticulous about this, it's an invitation for water to seep in during a rain. BTW, you can leave bedding on the mattress and just fold the whole thing up unless it's something bulky. If it's bulky, it just makes the closeup part more tricky, so take it off and stow away.
Do you have bunkend fans? If so, those will have a plug-in like the old stereo type near the top of the bunkend or in the ceiling right alongside. Those fans clip onto the pole once you're done setting up. It will hang either straight down or parallel to the pole....personal preference.
Hope you have a nice, dry weekend so you can really get into the HTT and see what's what.
Oh! totally aside from bunkends, but a word of wisdom gained by experience.....before you turn on the water heater, make sure there is water in it. Sounds simple enough, but our dealer forgot to do that and we burned out the heating unit.....they replaced right away with a sincere apology. Check this.
