Some people may laugh about it, but snoring is really not that funny. It can disrupt your sleep and that of your spouse. And if you have sleep apnea and you stop breathing during the night, you have an increased risk of cardiovascular problems such as high blood pressure or even heart attack. Doctors at Mayo Clinic are helping many patients with mild to moderate sleep apnea and people who simply snore get a good night's rest. That's thanks to a special dental device.