Modalert 200 boosts alertness, attention, and cognitive function to temporarily relieve sleep deficiency. It modifies brain neurotransmitters, mainly dopamine, to enhance alertness, making it effective for narcolepsy, shift work problem, and sleep apnea patients. After a restless night, Modalert 200 may help you remain awake and operate better, but it cannot replace sleep. For best outcomes, Modalert should be taken under medical supervision, not in place of sleep. For long-term health, treat sleep deficiency with lifestyle adjustments, stress management, and regular sleep patterns.