【Content Introduction】 This book, "The Art of Good Sleep," provides a detailed explanation of sleep methods beneficial for work and health. It introduces ways to improve the quality of daily life by obtaining good quality sleep. 【Features】 At an affordable price of 580 yen, this is a book that allows you to deepen your knowledge about sleep. It is particularly rich in specific advice for reducing stress and anxiety. - Title: The Art of Good Sleep - Price: 580 yen - Genre: Health & Beauty - Content: A book containing information on sleep methods beneficial for work and health - Condition: Used Thank you for looking.