'Sleep' in the Bible

In the second year of the reign of Nebuchadnezzar, Nebuchadnezzar dreamed dreams; and his spirit was troubled, and his sleep went from him.

Then the king went to his palace, and passed the night fasting; neither were instruments of music brought before him: and his sleep fled from him.

Now as he was speaking with me, I fell into a deep sleep with my face toward the ground; but he touched me, and set me upright.

Yet heard I the voice of his words; and when I heard the voice of his words, then was I fallen into a deep sleep on my face, with my face toward the ground.

Many of those who sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt.