ARI Legacy Sleepers ARI Legacy Sleepers builds custom sleeper cabs for long-haul truckers. The sleepers offer amenities truckers don't always have access to, like toilets, showers, kitchens, and full-sized beds. ARI can build in cool features like motorcycle garages, pull-out grills, upscale kitchens, and gaming stations. While a basic sleeper might run you $55,000, a large, customized build could cost upward of $150,000.