Pyjamas are comfortable clothing typically worn for sleeping or lounging at home. They usually consist of a top and bottom, which can be made from various materials like cotton, flannel, or silk. Pyjamas come in different styles, including sets with matching patterns or separates that allow for personal preference. Originally derived from the Persian word "pāy-jāma," meaning "leg garment," pyjamas have become popular worldwide. They are often associated with relaxation and leisure, making them a staple in many households. People may also wear loungewear or nightgowns as alternatives to traditional pyjamas.