She overslept and missed the flight.

她睡过头了，没赶上飞机。

youdao

She overslept because she had a headache.

她因为头疼而睡过头了。

youdao

Sorry, I overslept. I forgot to set the alarm clock.

抱歉我睡过头了，我忘记设闹钟了。

youdao

Another memory from the 1977 mayoral race had the candidate and me pacing the hall outside a Midtown hotel suite where Vice President Walter Mondale, who was scheduled to campaign with Mr. Koch, had apparently overslept, or decided to sleep in. (I'd been summoned to take the Vice President's luggage back to the airport and Air Force Two.) Whatever it was, Koch took the mix-up stoically.

WSJ: Ed Koch: A Mayor and His City

The Daily Mail focuses on two men who survived the accident, workers who were supposed to have been manning the crane which was hit, but who both overslept "for the first time in years".

BBC: Papers

Her approach to alcohol changed when she overslept on Christmas morning while her children were unwrapping their presents.

BBC: Wine drinker