パジャマ

ぱじゃま
noun
pajamas
1. pajamas; pyjamas
pajamas; pyjamas
I changed into pajamas and went to bed.
The child went outside still wearing pajamas.
In hospitals, you often spend the day in pajamas.

パジャマ (from English "pajamas") refers to sleepwear, typically a matching top and bottom set.

Related terms:

Common expressions:

Note: Many Japanese 旅館(りょかん) (traditional inns) provide 浴衣(ゆかた) instead of pajamas.