According to multiple sources, it is generally safe to sleep with a tampon in as long as it is not worn for more than eight hours. Tampons are made of cotton, rayon, or a mixture of both materials. However, tampon brands do not always offer clear advice about whether or not it is safe to sleep with a tampon in. The safety of sleeping with a tampon in depends on how closely you follow safety guidelines outlined by the FDA, which include changing a tampon within eight hours, only using tampons when you’re on your period, and using the lowest possible absorbency tampon. The risk of toxic shock syndrome (TSS) is a concern when using tampons, but the rate of TSS has declined over time, at least in part because of FDA regulations. TSS is no longer as common as it once was due to the fact that the U.S. Food and Drug Administration (FDA) pulled tampons off the shelves that contained ingredients like polyester foam and carboxymethylcellulose. TSS is a rare but serious condition that can occur when certain types of bacteria grow and produce toxins in the body. If you accidentally fall asleep with a tampon in, it is recommended to change it first thing in the morning and plan ahead for the next time.
In summary, it is safe to sleep with a tampon in as long as it is not worn for more than eight hours and safety guidelines are followed. The risk of TSS is rare but can be prevented by using the lowest possible absorbency tampon and changing it within eight hours.
