Sleeper trucks, also called semi-trailers, are one of the most common heavy duty vehicles seen on the highways. Conventional Sleeper Trucks are distinguished by the compartment located behind the cab that gives drivers a place to rest, making these vehicles ideal for longer cross-country hauls. There are a variety of manufacturers in the industry, including Kenworth, Freightliner, and International. CommercialTruckTrader features thousands of models for these brands, as well as numerous others. Users can filter through these vehicles for sale by fuel type, engine type, mileage, price, and a host of other details to ensure people find the right truck for the job.