Group 1 - The article promotes a self-driving tour organized by Serta, inviting participants to explore the northeastern region of China, specifically from Shenzhen to Harbin, from September 12 to 21, 2025 [3][10] - The tour will cover significant scenic spots such as the Greater Khingan Mountains, Wudalianchi, and Mohe, allowing participants to experience the beauty of autumn foliage and unique landscapes [5][10] - Serta emphasizes its commitment to providing quality sleep during the journey, with accommodations featuring Serta mattresses in various hotels along the route [6][10] Group 2 - Serta has been dedicated to sleep comfort since 1931, offering innovative mattress technologies that enhance sleep quality, including continuous coil systems and edge support [7][10] - The company collaborates with renowned hotel brands globally, including Hilton, InterContinental, and Marriott, and has established a presence in over 1,300 five-star and resort hotels in China [10] - Serta is currently running a promotional campaign for mattress upgrades, encouraging consumers to enhance their sleep experience at home [10]