It is important to follow the prescribed dosing instructions provided by the healthcare professional. Typically, Ritalin is taken in the morning or early afternoon to avoid interference with sleep. Taking Ritalin too close to bedtime may lead to difficulty falling asleep or disrupted sleep patterns. If there is a need for medication to be taken overnight, such as in the case of narcolepsy, the healthcare professional may prescribe a different medication or adjust the dosage and timing of Ritalin to accommodate the individual's specific needs.