Which is the correct way to express “they fell asleep” in spanish

Ello se durmieron. Or se durmieron todos.

The question is " what is a true statement about gustavo? 1. he speaks two languages.2. he is short.3. he takes good notes.4. he plays an instrument.i cannot answer which is correct because i do not know the passage, but i have translated the question and answersee or you.