People with sleep apnea have short pauses in breathing while they are asleep. These pauses may happen many times during the night. If not treated, sleep apnea can lead to other problems, such as high blood pressure, stroke, or memory loss. You can have sleep apnea and not even know it. Feeling sleepy during the day and being told you are snoring loudly at night could be signs that you have sleep apnea. If you think you have sleep apnea, see a doctor who can treat this sleep problem. You may need to learn to sleep in a position that keeps your airways open. Treatment using a continuous positive airway pressure (CPAP) device almost always helps people with sleep apnea. A dental device or surgery may also help.