Sleep apnea is a condition that can cause many complications to your body. If you are a heavy snorer, have been told you gasp for air during the night, or just generally feel lethargic during the day, please bring this up at your next appointment. Take a look at this article to learn more about sleep apnea.
http://health.msn.com/health-topics/sleep-disorders/feeling-lackadaisical-sleep-apnea-may-be-to-blame