With its promise of gentle movement and relaxation, a well-designed rocking chair can be a source of comfort in trying times.

“Rocking chairs have always offered a way to be soothed,” said Susan Ferrier, an interior designer based in Atlanta. “They function almost as stress relief.”

Because of their laid-back appeal, rocking chairs usually work best in casual spaces rather than formal ones. “We usually have them in family rooms, dens, lounges,” Ms. Ferrier said. “Anyplace where you’re watching television or reading.” (Or in nurseries, of course.)

And as most rocking chairs are fairly light — both visually and physically — they are also very versatile.