Pajamas are a type of comfortable clothing typically worn for sleeping or lounging at home. Traditionally, pajamas consist of a loose-fitting shirt and matching trousers, made from soft fabrics like cotton, flannel, or silk. They are designed to provide maximum comfort during rest and often feature elastic waistbands, buttoned or collared tops, and breathable materials. Originating from South and Central Asia, the word "pajama" comes from the Hindi and Persian term "p?yj?ma," meaning leg garment.

Pajamas have evolved over time into a wide variety of styles and designs, suitable for different climates and preferences. Some sets include long sleeves and full-length pants for warmth in colder weather, while others are short-sleeved or made with shorts for summer comfort. In many cultures, pajamas have also become casual homewear, not just limited to nighttime use.