A babydoll is a short, sleeveless, loose-fitting nightgown or negligee for women.
Babydolls are often seen as cute, feminine, and romantic.
Examples:
She wore a pink babydoll to bed.
The babydoll is very pretty.
The babydoll is on the bed.
I bought a new babydoll for my wife.
The babydoll is the prettiest thing I've ever seen.
The babydoll is so soft and nice to wear.