In John Updike's "Rabbit, Run," the concept of sleep is depicted as an internal sanctuary rather than a perilous journey through dark, unsettling thoughts. Instead of confronting nightmares, the character retreats into a personal space, representing a form of escape from the chaos surrounding him. The external world, with its dangers symbolized by a bear, is kept at bay as he seeks solace within himself.

This portrayal highlights a struggle between the security of inner peace and the threats from one's environment. Sleep becomes a metaphor for self-protection, emphasizing the importance of creating a mental refuge amid life's challenges. Overall, Updike captures the complexity of human consciousness and the need to find comfort within, even when faced with external turmoil.