Definition of "nightrobe" [night•robe]

• A loose dress designed to be worn in bed by women; a nightgown. (noun)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)

• "In spite of the cold, I was barefoot and wearing only a coarse white cotton nightrobe."
• "In disarrayed nightrobe I leap to bare feet and essay"
• "He took the advice and Cornelia dried herself before wrapping herself up in her thick nightrobe."