With the evolution of modern furniture design, a basic sofa purchase can be intimidating. The sofa has evolved from a simple box frame with plaid fabric to artsy, comfy all-foam structures and sleek one-seaters on stainless steel bases. The right sofa can set the tone for an entire room. Check out what’s hot in the world of mod sofas; the following selections include cutting-edge classics that are both comfy and artful.. -melody vaughn

This lightweight, all-foam armless sofa is from Ligne
Roset. $3,310
ligne-roset-usa.com

Great for kids and design snobs! This microsuede sculptural piece is stain-resistant and available in many great colors. Designed by Vladmir Kagan, it serves as a great conversation piece. $1,699
roomandboard.com

Check out this classic loveseat gone mod. Its stainless steel base and wool cushions equal pure urban elegance. Classic Loveseat $900 White Furniture Industries (212) 966-6711

From clothes to furniture, Ralph Lauren does it again. His refreshingly understated sofa has captured the true essence of modern furniture with its sharp angles, uninterrupted lines and seamless, single cushion seat. $3,660 Ralph Lauren Home (888) 475-7674