'Sleep' in the Bible

Then Joseph being raised from sleep did as the angel of the Lord had bidden him, and took unto him his wife:

"Rise from sleep, and take the child and His mother, and go into the land of Israel, for those who were seeking the child's life are dead."

he saith to them, 'Withdraw, for the damsel did not die, but doth sleep,' and they were deriding him;

Now while the bridegroom was delaying, they all got drowsy and began to sleep.

Again He came and found them sleeping, for their eyes were heavy.

Then cometh he to his disciples, and saith unto them, Sleep on now, and take your rest: behold, the hour is at hand, and the Son of man is betrayed into the hands of sinners.