Questions We All Ask: Is There a Difference Between a Sofa and Couch?

After a long, grueling day at work, there's nothing better than changing into your sweats, turning on the television, and relaxing on your couch. Or is it a sofa? Chances are, you've been using sofa and couch interchangeably for years without thinking twice about whether or not they're the same. So what gives? What's the difference between a sofa and couch? Is there a difference between a sofa and couch? Well, it depends on who you ask.