As someone who has studied both Eastern & Western medicine I can tell you this is perfect normal for only certain girls, particularly girls with a light flow, for their periods to stop at night. It's absolutely nothing to worry about, I myself have been experiencing this since the first time I had my period at 13, and now as a 25 year old nothing has changed.
Another benefit is you are much less likely to become anemic (this means your body doesn't have enough blood), since your less likely to lose too much blood every month (which is a common issue many girls have, especially if their flow is too heavy).
I just want to know if it will stop at night so I don't have to worry about it ... Cause I'm kinda freaking out right now ,.
So it will FOR SURE stop at night?