Does your bed partner keep poking you at night to get you to stop snoring? Do you wake up feeling like you haven’t slept a wink? Are you so tired during the day that it’s causing problems at work or home? If these scenarios sound familiar to you, then your snoring and sleepiness may be more serious than you think. Obstructive sleep apnea (OSA) is the most common form of sleep apnea disorder. OSA occurs when your airway becomes blocked, causing shallow breathing or stopping breathing while asleep. You wake up gasping for air, sometimes hundreds of times during the night.