When night fell, they all slept soundly. With one of them sitting on watch at all times, just in case something bad would happen, they couldn't celebrate too early, it would only bring disaster. Since Arduin was too exhausted to even force his eyelids open, he was exempt from sitting on watch, it would only exhaust him even more than he already was, which was very bad for his health.
Sorry for the wait! Point out grammar mistakes if you can, it would be appreciated!