In Chengdu, the "24-hour spa" (洗浴中心 or 汤泉) is a popular cultural phenomenon where a single ticket typically allows guests to stay for a full 24 hours. These massive complexes, such as those found in the Qianshen Hotel or Cheersum Hotel, function as all-in-one leisure destinations where visitors can enjoy hot springs, saunas, buffets, and entertainment zones, or even sleep overnight in relaxation lounges. For travelers seeking shorter visits, many massage-focused spas allow for stays of at least 3 hours, which can often be extended by booking longer treatments like a 90 or 120-minute full-body massage. While some high-end resort spas, like the Six Senses Qingcheng Mountain, operate on a more traditional schedule with treatments available from 10:00 AM to 10:00 PM, the city’s famous 24-hour centers remain a unique and affordable way to spend an entire day and night for approximately 200 to 400 CNY.