In "The Last Olympian," Percy observes that Nico's powers are overly draining, leading to fatigue. Nico humorously acknowledges this, illustrating the struggle that comes with possessing great abilities. He jokes about the necessity of rest that accompanies such power, suggesting that even those with extraordinary abilities need to recharge.
Their exchange highlights a lighter moment amidst the intense struggles they face, emphasizing the balance between strength and vulnerability. Nico's quip about needing a nap serves as a reminder that even heroes must take time to rest and recover from the burdens they bear.