The state of being half-asleep or nodding from sleepiness. Jesus uses it in the parable of the ten virgins, where 'all became drowsy and slept' while awaiting the bridegroom (Matthew 25:5). Peter uses it metaphorically, assuring believers that divine judgment against false teachers 'does not slumber'—God's justice remains wakeful even when it seems delayed (2 Peter 2:3). The word captures the intermediate state between full wakefulness and deep sleep, suggesting inattention or weariness.