Overhead airbag cushions are disclosed suitable for installation to a vehicle having an alternative seating arrangement, e.g., “campfire” or “living room” style seating wherein vehicle seating positions face each other. The overhead airbag cushion deploys from above a vehicle seating position to be disposed to receive at least a head of an occupant of the vehicle seating position. A reaction surface of the overhead airbag cushion may engage a roof, a windshield, or other structure of the vehicle to limit deflection of the overhead airbag cushion during loading as the occupant impacts the overhead airbag cushion. Internal and/or external tethers may assist in positioning and supporting the overhead airbag cushion.