Difference between Sleepwear and Nightclothes

What is the difference between Sleepwear and Nightclothes?

Sleepwear as a noun is garments designed to be worn in bed; nightclothes while Nightclothes as a noun is clothing worn while sleeping in bed, such as pyjamas or a nightgown, and when worn over nightclothes, a robe.

We hope you now know whether to use Sleepwear or Nightclothes in your sentence.