If I sleep less on weekdays, I can catch up on it on the weekends.

False!

It is unwise to cut sleep on school nights and try to pile them on weekend nights. Doing so can upset your body’s sleep-wake cycle.

Sleeping in on the weekends ruins the sleep cycle for the upcoming school week. It forces the body to “reset” and start a new wake cycle that begins early in the morning.

This makes it harder for your body to obtain the adequate amount of daily rest it needs.
Too little sleep on weeknights is unhealthy as it can impair academic performance and the ability to pay attention in class.

You might feel sleepy during morning classes and fall asleep or start to daydream, leading you to ignore the teacher and the lesson that is being taught.

If you have enough willpower to not let yourself sleep, you can then feel the effects of drowsiness and laziness that can lead to unfinished work. For student drivers, driving performance may be negatively affected as well.

The immune system is also susceptible to blows from lack of sleep, according to nutritionist Lyn Brock, making people sick easier and more frequently.

The more time you spend coughing in bed means less time you are in school learning important material.
Donna Arand, Ph.D., a spokeswoman for the American Academy of Sleep Medicine, wrote in an article that the body loves consistency and it is best to rise at around the same time every day, even on the weekends.

Of course, this does not necessarily mean that you need eight solid hours of sleep every night.

Every body has their own sleep needs and demands different amounts of rest and relaxation.