I will sit in my library, in my night cap and powdering gown, and give as much trouble as I can, or, perhaps, I may defer it till Kitty runs away.
坐在书房里,头戴睡帽,身穿寝衣,尽量找人麻烦;要不就等到吉蒂私奔了以后再说。”
英语百科
Nightcap (garment)
(重定向自Night cap)
A nightcap is a warm cloth cap worn while sleeping, often with pajamas or a nightshirt. They are similar to winter "beanies" worn in cold climates. They were common in northern Europe before central heating was available, when homes were cold at night.