tarÂ·pon. n. pl. tarpon or tarÂ·pons. Either of two large marine game fishes, Megalops cyprinoides of the Pacific and Indian Oceans or M. atlanticus of Atlantic coastal waters, having a bluish-green back and silvery sides.
Try using a menstrual cup. A menstrual cup can be left in place for up to 12 hours. Depending on your flow you may need to change it more frequently but it can safely be left in place for 12 hours a time. When you put a tampon in it is always important to remember to remove it. The same is true for a menstrual cup.
The best way to know if your tampon needs changing is to give a light tug on the tampon string, if it starts to pull out easily then it's time to change, if not, it usually means you can leave it a bit longer. Just remember with tampons, 4 hours is about right, and don't leave one in for more than 8 hours.