Ayat al-Kursi before sleep

اللَّهُ لَا إِلَٰهَ إِلَّا هُوَ الْحَيُّ الْقَيُّومُ

Allahu la ilaha illa huwal-hayyul-qayyum

Allah — there is no deity except Him, the Ever-Living, the Sustainer of existence.