The term 'couch material' is often used to refer to the upholstery fabric used to cover couches and other furniture. The crossword solution for this term is 'neuroses', which is an umbrella term for a variety of mental health issues, such as anxiety, depression, and obsessive-compulsive disorder. Neuroses are characterized by feelings of distress, apprehension, and worry, and can be caused by a variety of factors, including genetics, environment, and life experiences.