This is a low-resilience urethane foam pillow called the "Hamaru Pillow," with a special ergonomic shape. Its donut-shaped through-hole structure and unique shape allow for over 10 different ways to use it. It's designed to prevent sleep marks on the face, even when sleeping face down. It supports comfortable naps with a sensation of being enveloped by the face, arms, and head. It can be easily used in various places, such as the office or while traveling.