Feeling mentally tired despite resting can happen when emotional stress builds up over time. Even if the body rests, the mind may still be processing worries, responsibilities, or unresolved emotions. Poor sleep quality, overthinking, or burnout can also contribute to this tiredness. Creating mental rest—through mindfulness, slow breathing, or disconnecting from screens—helps restore clarity. It’s also helpful to identify emotional burdens that may be draining your energy. If mental fatigue remains persistent, a professional can help explore deeper causes and provide personalized guidance.