Core Viewpoint - Hotels typically provide four pillows on beds to cater to diverse guest preferences and enhance overall sleep quality, reflecting a service consensus developed over time in the hospitality industry [11][16]. Group 1: Pillow Configuration - Most hotels, regardless of brand or price range, maintain a standard configuration of four pillows for double beds, which is seen as a default setup [10][12]. - Different hotels may offer variations in pillow types, such as differing softness and filling, but the quantity remains consistent across various hotel tiers [10][13]. - The practice of providing four pillows is not limited to luxury hotels; even budget chains like Hanting and Home Inn follow this trend [6][8]. Group 2: Guest Comfort and Preferences - The provision of multiple pillows allows guests to customize their sleeping arrangements, accommodating various sleeping positions and preferences [11][12]. - Research indicates that sleep satisfaction significantly influences overall hotel satisfaction, with guests who find bedding uncomfortable being more likely to report poor sleep quality [11][12]. - The redundancy of having four pillows helps cover a wider range of sleeping preferences and reduces the likelihood of discomfort during sleep [13][16]. Group 3: Visual and Psychological Impact - The arrangement of four pillows contributes to a visually appealing and well-cared-for appearance of the bed, enhancing the perceived value of the room [13][14]. - This design choice aligns with the visual economy of the hospitality industry, making beds more attractive for promotional materials and social media [13][14]. - Hotels aim to convey a message of flexibility and consideration for individual guest needs through this pillow configuration, rather than enforcing a one-size-fits-all approach [16].