Nightie (noun)

A nightgown worn by a woman for sleeping.

Origin:

Slang word, from the word "night" and "nightgown".

Examples:

1. She put on her nightie before going to bed.
2. The nightie was made of silk.
3. The nightie was short and revealing.
4. She had several nighties in different styles.
5. The nightie was comfortable and helped her sleep.