4.5 hours deep sleep

In today's highly demanding work environment, it is quite normal to cut back on sleep to achieve your career goals. A common notion is that you will miss out on opportunities if you give sleep much importance in your life.

However, that's not the reality. You may not notice it, but even minimal sleep loss will have an impact on your energy, mood and ability to handle stress. And when you talk about the night sleep, the most important phase is deep sleep that plays a role in making you feel fresh in the morning.

That brings us to a question, "Exactly how much deep sleep do you need?" Keep reading to find out yourself.

What Is Deep Sleep?

Your body goes through several changes while you're sleeping.

How much core sleep do you need

The first stage is the non-REM sleep and you then move into stage of REM which stands for "Rapid Eye Movement". Your eyes move quickly in all directions when you're in REM sleep. For non-REM stage, your eyes won't move a lot, and you will go through the following phases.

• The first phase is when you fall asleep, but it is easy to wake you u
  how much deep sleep do you really need
  how much deep sleep is healthy