To dream of reclining on a couch, indicates that false hopes will be entertained. You should be alert to every change of your affairs, for only in this way will your hopes be realized.... Ten Thousand Dream Interpretation
Dreaming about a couch could mean that you may have a need for some rest and relaxation.
The couch also has other symbolism.
For example, it could be an object that brings up warm memories, such as those of your first love, whom you snuggled and first kissed. Additionally, look at all the details of your dream and try to determine if your couch is symbolic of an analyst’s “couch,” such as Freud had. Old dream interpretation books offer a somewhat strange but curious meaning. They say that the couch may be symbolic of a false sense of security and that you should listen to the advice of those that love you!... The Bedside Dream Dictionary
This symbol is a warning that you are taking too much for granted, and that you could be experiencing a false sense of security. Lying on a couch implies the need to take action to move your life ahead along the path you want... Dream Explanations of Astro Center