We have a Forrest River Rockwood Mini-Lite 23'. It's 3400 pounds dry. We tow it with our Nissan XTerra, 4WD with a supercharger, which has 5000 pound tow limit, but we installed a transmission cooler, so that's probably higher.
Ours is a 2013 model, which has no slide outs, but has a 'Murphy bed'. This folds up at the head against the front wall of the trailer, and a full-sized couch folds out under it, opening up a lot of floor space. We love it.
The new ones have slide outs, and it looks like the Murphy bed is an option you have to order. I don't like the floor plans nearly as much as ours, and I bet with the slide outs, they weigh more.