Difference between Nightie and Nightdress

What is the difference between Nightie and Nightdress?

Nightie as a noun is a woman's nightgown or nightdress; a dress-like garment worn to bed. while Nightdress as a noun is a nightgown; female attire designed to be worn to bed.

We hope you now know whether to use Nightie or Nightdress in your sentence.