Matching family pajamas were once seen as cheesy, but now they've become a cute holiday tradition for many. Whether you're buying them for your own family or getting sets for friends, festive pajamas are one thing that won't go to waste. After all, who doesn't want to spend all of December (especially Christmas morning) in a cozy fit? Fortunately, matching family pajamas are now so popular, and many retailers feature their own designs and styles.