Sleeping and Snoring

by Mike White
Sleeping adequately is critical to health. Most people die between 6:00 am and noon and I suspect that is largely due to recent poor sleep. Poor breathing during waking hours hinders sleep oxygenation and adequate rest and recovery, then we awake to stress or exertion.

Being fatigued makes us more likely to suffer from anything bad including lessened brain function and/or premature death.
http://www.breathing.com/articles/sleeping-snoring.htm