The two terms are often used interchangeably and basically mean the same thing: Clothes that you wear to sleep in. But if we take a closer look, there are a few subtle differences. A characteristic feature of pyjamas is the full-length button placket on the top, as we know it from a shirt. In addition, pyjamas are usually made from woven fabrics that are durable and keep their shape. We shed some light on the subject in a blog article here.