Swan couldn't sleep ever since she heard that Aria would return to Holy Achate by dawn.
She was worried because that burn scar would not fade anytime soon, and knowing Aria, Swan guessed that she would use the burn scar as 'proof' that Gale was a savage with no redeeming quality.
She didn't care if everyone insulted her. She didn't even care if everyone thought she was nothing but a whore's daughter.
But she refused to let anyone insult Gale, especially when he hadn't done anything wrong to grant an insult.
She buried her face in Gale's chest, listening to his calm heartbeat as he was in a deep sleep.
Gale often told her he didn't need sleep, and the other servants said the same. She even heard from one guard that the Beast King would never sleep at war, and he would not rest until the enemy was defeated or surrendered.
According to Gale, sleep was a luxury for him, as it was a sign that the pain inside his body was easing.