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.
It is fine to wear a tampon of proper absorbency overnight if it is changed promptly in the morning. The number of TSS cases in the US last year were unbelievably small- just 24 people, and that included cases from open wounds and burns, not just tampons.