Atharvaveda 19.56

Out of Yama's world hast thou come hither (ā-bhū); with mirth (?) dost thou, wise, make use of (pra-yuj) mortals; knowing, thou goest in alliance (sarátham) with the solitary one, fashioning (mā) sleep in the lair (yóni) of the Asura.

The all-vigorous bond saw thee in the beginning, in the one day before the birth of night; from thence, O sleep, didst thou come (ā-bhū) hither, hiding thy form from the physicians.

He of great kine (?) turned unto the gods away from the Asuras, seeking greatness; to that sleep the three-and-thirty ones, having attained the sky, imparted over-lordship.

Not the Fathers, and not the gods, know it, whose (pl.) murmur goes about within here; in Trita Āptya did the men (nṛ́), the Ādityas, taught by Varuṇa, set sleep.

Of whom the evil-doers shared ⌊bhaj⌋ the cruelty, the well-doers, by non-sleep, [shared] the pure (púṇya) life-time—thou revelest in the sky (svàr) with the highest relative; thou wast born out of the mind of one practising fervor.

We know all thine attendants (?) in front; we know, O sleep, who is thine over-ruler here; protect us here with the glory of the glorious one; go thou away far off with poisons.