Actually, that's the purpose of a wake.
At a time when lots of ppl were accidentally buried alive, they use to tie a string to the hand of the corpse and attach it to a bell on the surface. They had celebrations by the gravesite so that they'd be around to hear the bell if it happened to ring, in which case, the buried person wouldn't have been dead, just asleep.
Once they heard the bell, it would mean that the "corpse" was then awake. De lil yute was just early, that's all. No time for the bell, lol.