Summarization
Directions: The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Spell out the missing letters of the word.

     A good amount of sleep is as important to health as diet and exercise. Most people need seven to nine hours of sleep each night. Less than that can interfere with mental and physical abilities. It can lead to more serious problems, including severe sleeplessness or sleep apnea meaning temporary stop of breathing in sleep.
S  of a good amount of sleep.