Panty liner can be used as you are sleeping in a small amount of secret. But it is advisable to use a sanitary panty liner in the menstrual period. A better alternative for women is clean toilet paper, which doesn't breathe as well as panty pads. If there are no secretions or normal leucorrhea secretions, it is not recommended to use panty pads, because panty liners are airtight and easily breed a lot of bacteria. It is easy to get gynecological inflammation if women always sleep with a sanitary panty liner. This habit of using panty pads is unhealthy for the female body.