The human body usually needs 8 hours of sleep. During this time, certain parts of the body slow their normal funstion, some rest all together, while some still keep functioning in our sleep. When we wake, we feel refreshed, energized and ready to fulfill another day of study or work. As such, sufficient sleep is vital to people on this earth. While many enjoy their good night’s sleep, there is a group of people who let out tremendous noise in their slumber. Are they dreaming of singing, or are they imagining that they’re shouting a conversation? Not at all! These people are neither singing nor shouting, but snoring!