While the popular stereotype of Japanese couples sleeping in separate beds is often exaggerated, it is a practice that does exist in some households, particularly among older generations or those with young children. This sleeping arrangement can be driven by several practical factors. First, for many families with infants, a parent—most often the mother—will sleep with the child in a separate room or a different bed to ensure safety and facilitate nighttime care, while the partner sleeps elsewhere to ensure they are well-rested for work. Second, differing work schedules, individual sleep needs, or a simple preference for personal space can lead couples to choose separate beds or even separate rooms. It is not necessarily an indication of a strained relationship, but rather a functional choice in smaller urban living spaces or during certain phases of family life. However, younger couples in Japan are increasingly following Western-style trends, opting for large double or queen-sized beds and sharing the same sleeping space as a standard practice for married life.