I fell asleep
Me quedé dormida antes de que mi padre llegara a la casa.
I fell asleep before my father arrived home.
I fell asleep.
Tan pronto como me senté, me quedé dormida.
As soon as I sat down, I fell asleep.
Tuve que esperar tanto que me quedé dormida en la silla.
I had to wait so long that I fell asleep in the chair.
Me quedé dormida viendo televisión.
I fell asleep watching television.