Mushroom Sofa Ideas . Position the couch strategically with a bay of windows to let the light balance the room. Neutral sofa, modern furniture ideas, 2022 home decorations. Henredon Knole Cambridge Sofa in Mushroom Velvet. Original Price from www.designplusgallery.com Position the couch strategically with a bay of windows to let the light balance the room. Bedroom bay window boasts a taupe brown curved sofa with a gold accent table on a white sheepskin rug. Pretty pink and gray living room with framed heart art hung on pale gray walls over a gilt armchair with pink tufted upholstery layered with a round, pink triangle print pillow beside a mushroom colored sofa layered with triangle print pillow, gray ruffled pillow and banded pillow across from a acrylic.