The quote reflects the frustration of anticipation, describing how the expectation of an event can hinder one's ability to relax and fall asleep. The character sets an alarm but becomes so focused on its impending sound that sleep becomes elusive. This cycle of waiting creates a paradox where the very tool meant to signal rest instead contributes to anxiety and wakefulness.
This situation illustrates a broader theme of how our minds can complicate simple experiences. The struggle to sleep while waiting for an alarm serves as a metaphor for how we often let our expectations and worries interfere with tranquility and the natural flow of life events.