Prince William admits that wife Kate Middleton’s cancer battle took a toll on him.

“I’d say 2024 was the hardest year I’ve ever had,” the royal shares on an upcoming episode of AppleTV+’s “The Reluctant Traveler” with Eugene Levy.

He further reflects, “You know, life is sent to test us as well and being able to overcome that is what makes us who we are.”

William also notes in the segment, which will air in full on Oct. 3, how much he prioritizes sleep, as it’s an “important part of [his] life” because he’s got three small children.

The candid look at the future king’s life comes after Middleton — who revealed her cancer diagnosis in March 2024 — shared that she has gone into remission.

“My heartfelt thanks goes to all those who have quietly walked alongside [Prince] William and me as we have navigated everything,” the Princess of Wales wrote via Instagram in January.

Middleton underwent chemotherapy treatment that she once admitted was “incredibly tough,” as she fought the deadly disease.

However, even after she was cancer-free, the princess spoke about the lasting effects of her health woes.

“You put on a sort of brave face, stoicism through treatment. Treatment’s done, then it’s like, ‘I can crack on, get back to normal,’ but actually [that’s not the case],” she said at a Colchester Hospital visit in July.

“It’s a roller coaster, it’s not smooth, like you expect it to be. But the reality is you go through hard times.”

Sources have said Middleton and William, both 43, are now looking for a fresh start for themselves and their kids — Prince George, 12, Princess Charlotte, 10, and Prince Louis, 7 — which is why they’re moving into a new family home.

“Moving gives them an opportunity for a fresh start and a new chapter; an opportunity to leave some of the more unhappy memories behind,” a source told the Sun in August.

A Kensington Palace spokesperson confirmed to Page Six at the time that the Wales family will be moving into a new residence “later this year.”