A fifth-wheel trailer connects to the open cargo area of the tow vehicle, which must be a pickup truck, of course. This arrangements results in a two-level trailer, as the area that extends over the bed of the truck is usually a reasonably sized bedroom. Fifth-wheels are generally more stable than similarly-sized travel trailers, as the pickup-bed-mounted hitch reduces trailer sway and reduces the overall length of the truck and trailer.
Lengths of fifth-wheel trailers vary from 20 to 40 feet and weights range from about 8,000 to more than 20,000 lbs. Fifth-wheels generally boast the most interior space and tallest interior height of any RV. Slideouts are a common and popular option to increase interior space. Those who travel extensively in RVs, and full-timers, often find that a fifth-wheel and comfortable heavy-duty pickup are the best ways to travel.
Advantages over a similarly equipped motor home is that your towing pickup truck can be used year round for other purposes when you are not RVing. You can also disconnect your trailer from the truck at a campground so you can drive to local attractions more easily. Its generally easier to have a pickup serviced than an RV also. Fifth-wheels can actually be roomier than a motorhome, and have similar amenities, including luxury features if thats what you like. Perhaps the biggest disadvantage is that your passengers dont have access to all of those amenities while you are underway, as they would in a motorhome.