Very mild sexual innuendo,

In the beginning of the movie, Day is seen wearing a nightgown. She tries to cover herself up with her hands, but the nightgown is not revealing at all.

Day wears a dress with cleavage, for a short scene.

Words like "Dammit" is used in the movie.

Hudson's character has a bathroom cupboard full of pills, though they are only used for medical purposes

Characters drink, and are seen holding champagne bottles multiple times, though nothing is too severe.

The scene where Doris Day kicks Hudson out of the house may seem distressing to younger viewers, but it's light-hearted and played for laughs.