Material --- Satin , Very Silky Feeling and Help you Have a Sound Sleep.
EXPERIENCE EXTRA COMFORT: With a top Made from 55% cotton & 45% Polyester and a 100% polyester bottom, this 2-piece microfleece men's pajama set is the ultimate lounge and sleep outfit to ensure your comfort all night/day long. The pajama pants come with an elastic waist and a functional drawstring, so you can adjust it according to the tightness that suits you best.
ROOMY FIT - We use natural HIGH-QUALITY FABRICS, so our PJs are designed to accommodate shrinking; We want our customers to be entirely satisfied with our PJs, so WASH BEFORE WEARING for the best fit
What's a Pajamas ?
Pajamas (US) or pyjamas (Commonwealth) (/pəˈdʒɑːməz, pɪ-, -ˈdʒæ-/), sometimes shortened to PJs or jammies, are several related types of clothing originating from the Indian subcontinent. In the Western world, pajamas are soft, warm and traditionally loose garments derived from the Indian daywear pajamas and worn for sleeping and lounging by men, women and children.
History of Pajamas
The worldwide use of pajamas (the word and the garment) outside the subcontinent is the result of adoption by British colonists in India in the 18th and 19th centuries, and the British influence on the wider Western world during the Victorian era. Pajamas had been introduced to England as "lounging attire" as early as the seventeenth century, then known as mogul's breeches (Beaumont and Fletcher) but they soon fell out of fashion. The word pajama (as pai jamahs, Paee-jams and variants) is recorded in English use in the first half of the nineteenth century. They did not become a fashion in Britain and the Western world as sleeping attire for men until the Victorian period, from about 1870.
Types of Pajamas
Traditional pajamas consist of a shirt-and-trousers combination made of soft fabric, such as flannel or lightweight cotton. The shirt element usually has a placket front and sleeves with no cuffs. Pajamas are usually worn as nightwear with bare feet and without underwear. They are often worn for comfort by people in their homes, especially by children, especially on the weekend. In colloquial speech, pajamas are often called PJs or jammies. In South Asia and South Africa, they are sometimes referred to as night suits.
Contemporary pajamas are derived from traditional pajamas. There are many variations in style such as short sleeve pajamas, pajama bottoms of varying length, and pajamas incorporating various non-traditional materials. Often, people of both sexes opt to sleep or lounge in just pajama pants, usually with a t-shirt. For this reason, pajama pants are often sold as separates. Stretch-knit sleep apparel with rib-knit trimmings are common, mostly with young children.
Although pajamas are usually distinguished from one-piece sleeping garments such as nightgowns, in the US, they have sometimes included the latter or a somewhat shorter nightshirt as a top. Some pajamas feature a drop seat (also known as a trap door or butt flap): a buttoned opening in the seat, designed to allow the wearer to conveniently use a toilet.
Source : Pajamas Wikipedia