Your mouth anatomy. Having a low, thick soft palate can narrow your airway. People who are overweight may have extra tissues in the back of their throats that may narrow their airways. Likewise, if the triangular piece of tissue hanging from the soft palate (uvula) is elongated, airflow can be obstructed and vibration increased.
Alcohol consumption. Snoring can also be brought on by consuming too much alcohol before bedtime. Alcohol relaxes throat muscles and decreases your natural defenses against airway obstruction.
Nasal problems. Chronic nasal congestion or a crooked partition between your nostrils (deviated nasal septum) may contribute to your snoring.
Sleep deprivation. Not getting enough sleep can lead to further throat relaxation.
Sleep position. Snoring is typically most frequent and loudest when sleeping on the back as gravity's effect on the throat narrows the airway.
Obstructive sleep apnea. Snoring may also be associated with obstructive sleep apnea. In this serious condition, your throat tissues partially or completely block your airway, preventing you from breathing.
OSA often is characterized by loud snoring followed by periods of silence when breathing stops or nearly stops. Eventually, this reduction or pause in breathing may signal you to wake up, and you may awaken with a loud snort or gasping sound.
You may sleep lightly due to disrupted sleep. This pattern of breathing pauses may be repeated many times during the night.
People with obstructive sleep apnea usually experience periods when breathing slows or stops at least five times during every hour of sleep.