Published at Sunday, December 09th 2018, 02:29:53 AM by Kristina Barlow. Cuisiners. When choosing a new couch, make sure the cushions are firm. Soft cushions will not last for very long. Replacing cushions can be expensive, especially if these cushions are no longer manufactured. It is best to choose a standard size of cushions so you can easily find some replacements in case they wear off.