Minori Furusawa

Insomnia, one of the most common sleep disorders worldwide, negatively impacts both physical and mental health. Acute insomnia cases have been reported to increase during major societal crises such as natural disasters, pandemics, or terrorism, with the COVID-19 pandemic serving as a notable example. In Japan, young adults in their 20s experience the most difficulty initiating sleep, emphasizing the need for effective interventions. This study developed a relaxation-supporting robot designed to facilitate napping through a novel tapping mechanism. The robot employs a free-fall hand mechanism to deliver natural, gentle tapping, reducing discomfort and ensuring safety. This approach was inspired by touch care techniques, which are known to promote relaxation and alleviate stress. Unlike human caregivers, the robot maintains consistent rhythm and intensity, enhancing reliability. With a lightweight, portable design, the robot targets versatile applications, including workplace and educational settings. Future integration with sensors for personalized feedback could further enhance its utility as a napping aid.