A sauna is a small, enclosed room or space that is heated to high temperatures, typically ranging from 160°F to 200°F (70°C to 100°C) or higher. The heat in the sauna is generated by heating rocks, electric heaters, or infrared panels, which radiate heat throughout the room. Saunas may be made of wood, tile, or other heat-resistant materials and often feature benches or seating areas for relaxation.