There is a strong link between excessive consumption of alcohol and sleep apnea. Heavy drinking is associated with obstructive sleep apnea, potentially affecting nightly breathing patterns. Alcohol can intensify snoring and disrupt normal breathing, as it tends to slow down respiration and reduce the depth of breath. This happens as the muscles in the throat relax, sometimes causing the airway to narrow or even collapse.
For individuals struggling with alcohol use disorder, drinking in the evening can further relax the neck and throat muscles, increasing the likelihood of airway collapse and worsening sleep apnea, leading to restless nights.
Even among those without alcohol use disorder, moderate or heavy drinking can trigger episodes of sleep apnea. After just one night of drinking, the chances of snoring or experiencing frequent nighttime awakenings significantly increase.
For individuals already dealing with sleep apnea, consuming alcohol can exacerbate the condition on nights when alcohol is consumed, leaving them feeling exceptionally fatigued in the morning. Poor sleep due to obstructive sleep apnea can lead to a dramatic drop in blood oxygen levels and a dangerous elevation in carbon dioxide levels in the body as drinking and sleep apnea collide.
Read on to learn more about the following issues:
- Does alcohol affect sleep apnea?
- How to avoid sleep apnea alcohol death.
- Alcohol and snoring: is there a link?
- How to connect with alcohol addiction treatment in Ohio.
Can Alcohol Cause Sleep Apnea?
Alcohol sleep apnea may co-occur because consuming alcohol has the effect of relaxing muscles in the airway, potentially leading to upper airway obstructions during sleep, a condition known as sleep apnea.
Sleep apnea is a sleep condition that is characterized by repetitive interruptions in breathing while asleep, often accompanied by loud snoring and occasional choking, gasping, or snorting sounds. It can result in daytime drowsiness and decreased energy levels.
Sleep apnea has three sub-types:
- OSA (obstructive sleep apnea): The most prevalent form, OSA manifests when soft tissues in the throat collapse during sleep, obstructing the airway. This causes the air passage to narrow or close, disrupting the breathing cycle and prompting awakenings. The link between alcoholism and sleep apnea usually involves OSA.
- Central sleep apnea: In central sleep apnea, the brain is unable to send the appropriate signals to muscles responsible for breathing.
- Complex sleep apnea: Also referred to as treatment-emergent sleep apnea, this form occurs when individuals with OSA develop central sleep apnea as a result of CPAP (continuous positive airway pressure) treatment.
Even individuals without pre-existing OSA may experience sleep apnea symptoms after alcohol consumption. Research indicates that moderate or heavy use of alcohol can induce episodes of OSA in individuals who do not typically have the disorder. Beyond this, studies confirm that individuals with alcohol use disorder, especially those who already snore, are at increased risk of developing OSA.
Alcohol’s impact on obstructive sleep apnea can be particularly concerning. Beyond relaxing the airway muscles, alcohol can prolong the duration between cessation of breathing and resumption of normal breathing. It can also lead to nasal congestion, further impeding nasal breathing.
In essence, alcohol intake can inflame OSA, intensifying the severity of blood oxygen level drops (desaturations). This, in turn, can elevate carbon dioxide levels in the body (hypercapnia). This can be life-threatening if it becomes severe.
Additionally, alcohol can worsen central sleep apnea. Alcohol slows down the CNS and can result in more frequent episodes of apnea. In individuals with central sleep apnea, the brain’s automatic signals to respiratory muscles to breathe are disrupted, and alcohol further amplifies this problem by reducing brain activity and increasing the frequency of breathing pauses.

How Does Alcohol Affect Sleep?
In addition to the way sleep apnea and alcohol are interlinked, alcohol can have significant impacts on the quality and structure of sleep independently. While it may initially appear to help people fall asleep faster, the overall effects on sleep architecture can be detrimental. Here’s how alcohol affects sleep:
Disruption of sleep stages
Alcohol disrupts the natural progression of sleep stages. It tends to suppress REM (rapid eye movement) sleep, the stage associated with vivid dreams, learning, and memory consolidation. This means that individuals who consume alcohol before bed are likely to experience less REM sleep, which can affect cognitive function and emotional regulation.
Fragmented sleep
Alcohol can lead to more fragmented sleep, with frequent awakenings during the night. Even if individuals do not fully wake up, these interruptions can prevent them from experiencing deep, restorative sleep.
Increased snoring and sleep apnea
Alcohol relaxes the muscles in the throat and airway, increasing the likelihood of snoring and airway obstruction during sleep. This can worsen or trigger sleep apnea, a condition characterized by repeated pauses in breathing during sleep.
Dehydration
Alcohol is a diuretic, meaning that it can increase urine production. This can lead to dehydration during the night, which may prompt individuals to wake up to use the bathroom.
Impaired sleep quality
While alcohol may help people fall asleep more quickly, it often results in poorer sleep quality overall. Sleep following alcohol consumption tends to be less restful and rejuvenating, leading to feelings of fatigue and grogginess upon waking.
Increased arousal
Alcohol can trigger more frequent awakenings during the second half of the night as the body metabolizes the alcohol. This can lead to a sense of restlessness and difficulty returning to sleep.
Changes in sleep architecture
Alcohol can alter the normal sleep cycle, leading to a disrupted pattern of sleep stages. This can impair memory consolidation, emotional processing, and cognitive function.
Worsened sleep disorders
For individuals with pre-existing sleep disorders, such as insomnia or sleep apnea, alcohol can worsen these conditions, making sleep problems even more challenging.
The effects of alcohol on sleep can vary from person to person. While some people may be more sensitive to alcohol’s disruptive effects on sleep, others may experience fewer disturbances. However, as a general rule, using alcohol as a sleep aid is not recommended. Establishing healthy sleep habits, such as maintaining a consistent sleep schedule and creating a comfortable sleep environment, is a much more effective approach to achieving restorative sleep.
Statistics: How Alcohol Affects Sleep
- While alcohol may help you fall asleep, it can disrupt your sleep cycle. Up to 30% of U.S. adults experience insomnia due to alcohol’s impact on sleep, leading to difficulty falling asleep and staying asleep, as well as achieving restorative sleep.
- Alcohol increases the likelihood of breathing-associated sleep events like snoring or oxygen desaturation, especially in those with pre-existing issues. It can inflame conditions like obstructive sleep apnea, causing interruptions in breathing during sleep and inducing alcohol snoring.
- Drinking alcohol 30 to 60 minutes before bedtime can lead to peak alcohol levels in the breath and blood around bedtime. This timing can further intensify its adverse impact on sleep.
- The impact of alcohol on sleep becomes more pronounced with age. Studies conducted on over-50s show that heavy drinkers in this age group are 64% more likely to develop insomnia. Beyond this, occasional binge drinkers in this demographic are 35% more prone to insomnia than those who abstain from alcohol altogether.
- Even modest alcohol consumption can have a noticeable impact on the quality of your sleep. Research reveals that consuming less than two drinks for men or just one drink for women resulted in a 9% reduction in sleep quality. These effects become more pronounced as alcohol intake increases. Consuming two alcoholic drinks led to a more substantial 23% decline in sleep quality. Exceeding this level of alcohol consumption resulted in a 39% decrease in sleep quality.
FAQs
Can drinking alcohol cause sleep apnea?
Drinking alcohol alone is not a direct cause of sleep apnea, but it may contribute to the condition indirectly. Alcohol relaxes the muscles in the throat and airway, increasing the likelihood of airway obstruction during sleep, which can exacerbate sleep apnea in individuals already at risk.
Does drinking make sleep apnea worse?
Yes, alcohol consumption can make sleep apnea worse. It relaxes the muscles in the airway, potentially increasing the frequency and severity of breathing interruptions during sleep for individuals with sleep apnea. It is advisable for those with sleep apnea to limit or avoid alcohol before bedtime.
Does alcohol make you snore?
Yes, alcohol can make a person snore more loudly or frequently. It relaxes the throat muscles, increasing the likelihood of snoring, especially when consumed before sleep. This snoring can sometimes be associated with sleep-disordered breathing conditions like sleep apnea.

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