We have a 2011 Greystone 32RL, so I'm not familiar with your bedroom layout.....but how different can they be? Our bedroom slide out has a built in "night stand" that intrudes into the front closet. So, I built a shelf to fit my ResMed machine and attached it to the back of that unit.
Since I hate working in tight spaces, I removed the actual shelf unit (a couple of screws in stud framing) and assembled the my shelf while it was sitting on the kitchen counter. Then re-assembled the "night stand" back into it's regular location.
I hooked two hoses together (= 12' hose) and plug machine into existing outlet under the "night stand".
Since the switch for the machine is NOW in the closet, I purchased an outdoor Christmas light remote (cheapest I could find $8) and plugged it in to the outlet and my machine into that device.
So there you have it. I have pictures, but they are on my phone. I will retrieve them and TRY to post them here.
The pictures may help explain what I did.....it works great, not noise for my wife to listen to etc. The existing shelf was not nearly large enough to suit the machine, which is not that big.
NOW, you may have an actual separate (semi-free standing night stand...in that case, you're on your own.
Good luck.
p.s. the one thing you'll notice in the photos which I've fixed, I had stained the new shelf, but not the back edge....it's now stained as well. AND there is enough of a lip on the shelf I made to keep the CPAP in place while traveling!