Even though Beelzebub was 'asleep', he wasn't shown any leniency by the progenitors. As soon as Ashton entered the chamber that had been turned into a prison cell, the heavy aura of Beelzebub greeted him. The air was so dense, that even Ashton had difficulty in breathing.
In the end, he decided it was best to turn his werewolf genes off so that he wouldn't need to breathe anymore. He was chained from the head to the toe, and these weren't the usual metal chains either. But chains made out of what Ashton mistook as light.
"These chains exert the gravitational pull equivalent to ten times of the earth. These aren't the strongest resticting device available, but it was the costliest one we could smuggle." Lycaon described the use of the chains to Ashton.