It is proven that the earlier you go to bed the more likely you are to fall into a deep sleep
the reason behind this is the other hormone that's released named epithalamine. An epithalamine is a hormone that increases learning capacity
human brain is designed in such way that it learns new things rightup until the daay we die but many people's brain deteriorate because they stop learning new things
So in order to keep going with learning new things and to increase epithalamine which is responsible for increase in the ability to understand and retain the new things
As an example you can ask a teacher, he will tell you that children who stay awake late night have very less ability to learn new things
and understanding new concepts, the reason behind this is less release of epithalamine hormone.
epithalamine not only increased learning capacity but it also slows down aging, so there are lots of unbelievable benefits of going to bed early