A couch that a sick person lays on until they feel better. Healthy individuals must find somewhere else to sit, as a sick couch is reserved for a sick person. To convert a couch to a sick couch, add a blanket and bed pillow. A sick couch should be within reach to a table that holds some or all of the following items: tissues, ginger ale, pain reliever, chicken noodle soup.
I'll be on the sick couch for the rest of the night.