Sleep supplements are designed to improve sleep quality and help manage issues like insomnia, difficulty falling asleep, or irregular sleep patterns. Common ingredients include melatonin, a hormone that regulates the sleep-wake cycle, and magnesium, which helps relax muscles and calm the nervous system. Herbal ingredients like valerian root, chamomile, and passionflower are often used for their calming and sedative properties. Other ingredients such as L-theanine, an amino acid found in green tea, promote relaxation without causing drowsiness. While sleep supplements can be beneficial for short-term sleep issues, they should be used with caution and in conjunction with healthy sleep habits.