'Bolster' in the Bible

And Michal took an image, and laid it in the bed, and put a pillow of goats' hair for his bolster, and covered it with a cloth.

And when the messengers were come in, behold, there was an image in the bed, with a pillow of goats' hair for his bolster.

So David and Abishai came to the people by night: and, behold, Saul lay sleeping within the trench, and his spear stuck in the ground at his bolster: but Abner and the people lay round about him.

The LORD forbid that I should stretch forth mine hand against the LORD'S anointed: but, I pray thee, take thou now the spear that is at his bolster, and the cruse of water, and let us go.

So David took the spear and the cruse of water from Saul's bolster; and they gat them away, and no man saw it, nor knew it, neither awaked: for they were all asleep; because a deep sleep from the LORD was fallen upon them.

This thing is not good that thou hast done. As the LORD liveth, ye are worthy to die, because ye have not kept your master, the LORD'S anointed. And now see where the king's spear is, and the cruse of water that was at his bolster.