Pajamas
Pajamas (pyjamas in the United Kingdom) are loose clothes that people wear while they are sleeping. Pyjamas usually include trousers and a shirt. Pyjamas are often made of cotton. They are usually worn without underwear. The word comes from Hindi: पजामा, Pajāmā; Persian: پايجامه. Pajamas are often worn without underwear.
Pajamas Media
A Muslim girl in India wearing pajamas and kurti (lithograph from Emily Eden's Portraits of the Princes and People of India, 1844)
Boys in stretch-knit pajamas.
Toddler in footed pajamas.