What makes "Sleepless Nights" stand out is the chemistry between Ben’s grounded, rhythmic delivery and Gwen’s ethereal, soaring vocals.

Explanations of how Gwen handles the responsibility of the Omnitrix, often leading to exhaustion and lack of sleep. Official Connections

They don’t sleep that night either. But for the first time, they don’t need to. Because the were never about a lack of rest. They were about a lack of safety.