Bible Verses About Sleep: A symbol of death

So man lieth down and riseth not: Till the heavens be no more, they shall not awake, Nor be roused out of their sleep.

he said, Give place: for the damsel is not dead, but sleepeth. And they laughed him to scorn.

And when he was entered in, he saith unto them, Why make ye a tumult, and weep? the child is not dead, but sleepeth.

And all were weeping, and bewailing her: but he said, Weep not; for she is not dead, but sleepeth.

These things spake he: and after this he saith unto them, Our friend Lazarus is fallen asleep; but I go, that I may awake him out of sleep.

The disciples therefore said unto him, Lord, if he is fallen asleep, he will recover.

For if we believe that Jesus died and rose again, even so them also that are fallen asleep in Jesus will God bring with him.