User blog comment:IamJakuhoRaikoben/Chapter 451: Fairy Heart, Review./@comment-188.171.29.53-20150907181716/@comment-7418318-20150907191153

Grimoire didn't believe he was literally sleeping, they believed his true power, true evil self or something along those lines was asleep, leaving him as the weak teenager that Ultear could beat without too many troubles.

After all Ultear wasn't surprised in the least when she found him wandering around clearly awake.