Hi Nicky! ^_^

            Your homework was "Why enough of sleep is important?". Let me fix your homework and kindly take note of it.

    It is better to say this:

  Enough of sleep is important to a person's health. If you will lack of sleep there is a chance that you will have sleeping disorder and you cannot focus on your daily activities.  It can affect your mood and performance and your body will be weak. Lack of sleep can even be deadly.

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Nicky, always practice answering in paragraph. Always allow yourself to express your ideas.  In this topic, you can relate yourself if you lack of sleep so you could make more sentences.

   Anyway, I always enjoy having a class with you. You are very jolly and obedient kind of student. Take note of the corrections that I gave you Nicky and take time to have a self review.

See you in the class and take care always. ^_^

~T.Cassie