Yes, all United Polaris business class seats are 100% lie-flat. The Polaris "hard product" was specifically designed to provide every passenger with a flat bed that extends to 6'6" (198 cm) in length. One of the key features of the Polaris cabin is its 1-2-1 configuration, which ensures that every single passenger has direct aisle access, eliminating the need to climb over a neighbor. The seats are outfitted with high-end bedding from Saks Fifth Avenue, including a plush duvet, a cool-gel pillow, and sometimes a mattress topper upon request. While United also offers a "Domestic First Class" and "Premium Plus" (Premium Economy) product which do not feature lie-flat seats, any flight marketed as "United Polaris"—which is the flagship product for long-haul international routes—guarantees the lie-flat experience. Some older "United Business" configurations on regional or shorter routes may still feature "angled-flat" or deep-recline seats, so travelers should always check the seat map for the 1-2-1 layout.