Your sleep doctors will tell you sleep eight hours.
I have seen a lot of rich men who don't sleep eight hours. If you are going to sleep eight hours you are going to be poor.
You have to invest your time convert your time into a product so. If you can sleep like five five hours it's good. You have to sacrifice your sleep. Poor people they love sleeping, Rich people don't even have time to rest, they don't even have time to sleep.
Sacrifice your sleep to learn something new sacrifice your sleep to learn something that will take you to the next level convert your sleep into a product.