REDFORD, Mich. — Although it’s best known as a vocational truck, Sterling now offers updated sleeper offerings on its A-Line and L-Line tractors. “Sterling has always been in the sleeper tractor ...
Prior to the 1930s, sleeper cabs in trucks, providing an area for drivers to rest, didn't exist. It wasn't until 1933 that Kenworth became the first manufacturer to offer an integrated sleeper section ...