Throw pillows or couch pillows have been used by home interior designers to differ your mood from rooms to rooms.
See tips for pillow shopping for your own home
Standard squares (18×18 inches) nest neatly on sofas with typical dimensions. Oversize pillows (24×24 inches) create a more casual, loungey feel. If you have a modern sofa with a very low back, consider 16×16 inches.
A feather-and-down fill has more squish, and it’s also the priciest. Foam and other synthetic fills are stiffer. They hold their shape but look less lush.
In design, odd numbers tend to be more artful. Try one, three, or five, depending on the size of your furniture and the look you want (one for a chair, three or five for a standard 88-inch sofa).
An easy combo: a matched pair of square solids that contrast with the color of your sofa. One oblong pillow for the center of the couch and two interesting outliers (patterned, embellished, or oddly shaped) that reference either the color of your upholstery or the color of your solid pillows.
Tactile contrast : nubby linen against smooth leather or silk upholstery, or shiny pillows on a fuzzy couch. Add warmth and offer traction, so pillows don’t slide off seats.
Think of a living room’s pillows as a family. The pillow on a chair doesn’t have to match the group on the sofa. But if it relates in some way (palette, style) the space feels unified and polished.
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