Sometimes one is acceptable if the pillow is big or the sofa is shallow. · you don’t want to risk overwhelming anyone with too many throw pillows , which is why both cashman and gruver recommend sets of threes (two pillows on one side of the couch plus one on the. Add a larger pillow behind a smaller one, or use different textures and patterns to create depth and interest. A smaller loveseat, which typically measures between 50 and 70 inches wide, generally performs best with a minimalist arrangement of two to three pillows total. · i usually mix it up and have about two or three, depending on size, per corner of each sofa or sectional, spreckman says. · learn how many pillows to put on your couch , with styling tips, common mistakes to avoid, and simple tricks for a polished look. For a three-seat or large couch, use 4-5 pillows. The simplest way to get a pillow arrangement right is to follow the 1-2-3 method. Throw pillows are not just decorative; They also need to be practical. · the physical dimensions of your couch provide the baseline for how many pillows it can comfortably accommodate without becoming overwhelmed. For a loveseat or medium-sized couch, use 2-3 throw pillows. Of course, there is no wrong number of pillows for your arrangement, and the most important thing is to do what works best for you. Don’t be afraid to mix it up a little. For a standard-sized couch , this often means having two pillows on each end. · for a single-seat couch , only use 1 throw pillow. For large sofas and sectionals, we recommend five pillows. For a sectional, use 5-6 pillows.