While scientists don't know for sure why we have to sleep, one thing is clear: we need it and if we don't have it, a lot of things can go wrong. And we're not talking about just your body. It will affect parts of your life like your career, relationships, and more.

Several studies have correlated waking up early with success, and this is because sleep habits can seriously affect how we feel and perform during the day. So if you want to achieve success, here are 6 very good reasons on why you should try to get more shuteye:

1. More Proactive

Getting enough rest can seriously affect your outlook on life. One study conducted in 2008 showed that early risers are more proactive, and were more likely to agree with statements like "I spend time identifying long-range goals for myself" and "I feel in charge of making things happen."

2. Anticipate Problems

The same study also found that "morning people" are more likely to anticipate problems and minimize them efficiently. Both these traits are required if you want to increase your chance of becoming more successful in the business world.

3. More Optimistic

Various studies have shown that morning people exhibit character traits like optimism, being agreeable, satisfaction and conscientiousness. Night owls were linked to creativity and intelligence, but were also more likely to exhibit traits like depression, pessimism and being neurotic. 

4. Improves Sleeping Patterns

According to the sleep experts, going to bed and waking up earlier helps to train the body to be more in tune with the earth's circadian rhythms. This also offers more restorative sleep, which yields way more health benefits than the occasional nap during lunch.

5. Better Time Management

Waking up early means you'll have plenty of uninterrupted time to focus and prepare for the day. Early risers are more likely to use their morning quiet time for organization, goal-setting and planning out their days and even weeks ahead.

6. More Time

Many successful businesspeople get up early just to exercise, which helps to boost both mood and fitness. This in turn provides plenty of energy to get things done, while helping to create deeper sleep cycles. And instead of rushing or bringing unfinished work home, you'll get to spend more quality time doing other beneficial things like being with family, relaxing and unwinding.