We also have the 2300, and do about the same thing as Bill. Lay the bedding into the far end with some slack in front of you. Set up the bedding and start working backwards. It's not as easy as a walk-around bed. It just takes some exercise, it's good for you. :) I convinced my wife that it doesn't have to be perfect, so once it's made, it's just a matter of a quick straightening out.
To those who would never have a corner bed... in this particular model, the bed is quite large. It is a home-size 60x80, and the opening to the bed is likewise large. It is relatively easy to crawl out of bed while the other person stays put. It's more the crawling itself, rather than having to work around the other person, that would be an issue for someone. The person on the aisle side has it quite easy, actually. Just sit up down by your knees and get out. It's no walk-around, but to us it is a good compromise for getting a nice big bed in a small Class C. We got the upgraded Serta mattress and it is very comfy.
There is quite a bit of storage over the bed, so crawling on the bed now and then is something you just have to do. I'd rather not have to, but something has to give. In exchange, we can drive and camp with ease due to the small footprint. We could have afforded something bigger, but it was a lifestyle decision. We love it.