fall asleep

verb3

1. •
   To pass from a state of wakefulness into sleep.
2. •
   (figurative) To be affected by paresthesia; to go numb.

   • My left leg has fallen asleep!
3. •
   (literary, euphemistic) To die (often seen on gravestones).

   • And he kneeled downe, and cried with a loud voice, Lord lay not this sinne to their charge. And when he had said this, he fell asleepe. And Saul was consenting vnto his death. — 1611