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Why late afternoon naps make you feel more exhausted instead of refreshed?

Late afternoon naps can lead to exhaustion due to sleep inertia, where waking from deep sleep causes disorientation. Naps exceeding 30-40 minutes can disrupt the circadian rhythm and worsen fatigue, especially if sleep-deprived. Experts recommend short power naps or 90-minute cycles to avoid grogginess and maintain nighttime sleep quality.

27 May 2026 4:52 pm