If it is made of wood in the dream, it indicates respectability, and if it is not upholstered in the dream, it means lowness or inferiority.
A fabric stuffed couch in a dream signifies honor, welfare, promotion, good words, new clothing, love, affection and unity. (Also see Bed; Mattress)... Islamic Dream Interpretation
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
The earliest possible marriage with your affianced is advised by a dream tn which you and your sweetheart sit together upon an ottoman or other low upholstered furniture, for enemies are likely to gossip unkindly about you to your lover.... The Complete Dream Book