A 2012 interview with NPR quotes La Havas commenting on the interaction she had with this mystery older gentleman, saying:

I met an older man just after this guy dumped me.

Soon after they met, La Havas further revealed to NPR that she had been introduced to another man, who happened to be a singer, that began to serenade her. She added:

A song called “Cow Cow Boogie” by Ella Fitzgerald [covered by] the Ink Spots, and it had this rhythm.

That rhythm ended up inspiring the rhythm behind “Age,” as the article goes on to reveal.

In this titular lyric, Lianne seems to pray or speak into existence that her lover sleeps softly when they are in bed together. She’s under the impression that infidelity is the potential reason for her lover’s inability to sleep soundly.

Restless sleep often corresponds with guilt, anxiety, and stress; these side effects evolved into the popular rhetorical question, “How do you sleep at night?” which is said in order to create guilt and remorse in a person.

This line references the 2003 French animated comedy The Triplets of Belleville, written and directed by Sylvain Chomet.

One scene features three women performing on stage in close quarters, all sharing a single microphone.

Opening the cliché Parisian-love inspired song, La Havas alludes to the Jean-Jacques Beineix-directed 1986 film Betty Blue, with its two main characters Zorg and Betty.

The film depicts the wild romance of Zorg, a laid-back fixer-upper, and Betty, a wild soul with a burning passion for Zorg and his work. As the film progresses, Betty becomes more and more unhinged, but Zorg’s love for her never fades, not even when he makes the painful decision for her fate at the end.

La Havas, although strikingly different to the situation in Betty Blue, compares her and her lovers' powerful connection to that of Zorg and Betty’s: an unwavering and undeniable love through every up and down.

La Havas expanded on this line and the inspiration the movie had on the entire rest of the song with Coup de Main Magazine, saying:

There’s a film called Betty Blue which is maybe one of my favourites and it is a love story, a tragic French love story. It’s so beautiful and the characters are so beautiful – the song “Au Cinéma” is inspired by that film.

Lianne is likely inviting her ex-lover up to her room—a place where she has spent much of her time recovering from the trauma of their break-up.