What does the Bible say about spiritual sleep?

Paul's exhortation in Romans 13:11-14 addresses complacency among believers, urging them to recognize the time and awaken from their spiritual sleep. He draws a parallel to the parable of the foolish virgins, highlighting the danger of being indifferent to one's calling in Christ. This spiritual sleep symbolizes a failure to engage actively in faith and service, reflecting a lack of awareness of the impending return of Christ. Paul stresses that our salvation is nearer now than when we believed, instilling a sense of urgency to align our lives with God's calling and to reflect His light in a dark world.