There are several aspects related to your period that can disrupt your sleep:
- Premenstrual syndrome (PMS) due to its many symptoms.
- Painful periods (it's difficult to sleep when you are also in pain).
- Body temperature: when you're on your period, your body temperature increases. We need it to go down slightly to sleep well.
- The level of progesterone: it drops when you're on your period and, like many hormones, it has an impact on sleep.
But each woman experiences her period differently, so some will notice an impact on their sleep, and others will feel nothing at all.