Sleep was deep, but not peaceful. 

With each creak and groan, he moved, but would never remember it. Instead, he would tense or tremble due to the nightmares of his own mind. He had been a knight, of course. A trained warrior. Combat was not something new. Death was rare, but also not new. Seeing everything irrevocably destroyed, and a castle's worth of bodies...that was new. That was too much. 

Finding the throne room had been enough to send him running. 

At such memories, while he was internally wailing...on the outside he was just somewhat groaning with the mental pain.