How does Beowulf prepare for his battle with Grendel?

Hrothgar gives Beowulf and his companions the duty of guarding Heorot that night. The young man decides to face Grendel without weapons since Grendel does not use them. He tells those around him that the outcome of the fight is in the hands of God. The Danes leave the hall, Beowulf and his companions bed down for the night.