Alcohol and Sleep: Does Drinking Help You Sleep Better ?

Can Alcohol Help You Fall Asleep Faster?

Alcohol can make you feel sleepy, but the effect depends on how much you drink.

A 2025 systematic review and meta-analysis of 27 studies found that alcohol reduced the time needed to fall asleep and reach deep sleep only at high doses—approximately five standard drinks in the studies reviewed.

At lower doses, these benefits were not consistently observed. In contrast, REM sleep disruption occurred even at lower doses and became more pronounced as alcohol intake increased.

This distinction matters. Feeling drowsy after a drink is not the same as getting restorative sleep. Alcohol may produce sedation, but it can also interfere with the normal organisation of your sleep throughout the night.

The takeaway: Do not use alcohol as a sleep aid. It may make you feel sleepy, but it cannot be relied upon to improve sleep quality.

What Does Research Say About Alcohol and Sleep?

The strongest recent evidence comes from the 2025 systematic review and meta-analysis by Gardiner and colleagues, which examined 27 studies of alcohol and subsequent sleep in healthy adults.

The researchers found two important patterns:

• REM sleep was delayed and reduced. These effects appeared even at lower doses and became stronger as alcohol intake increased.
• Falling asleep faster was not a consistent benefit at lower doses. Reductions in sleep onset time were observed only at high doses in the pooled analysis.

The researchers could not draw firm conclusions about several other outcomes, including total sleep time, sleep efficiency and waking after sleep onset, because the findings were uncertain.

This does not mean alcohol never causes nighttime awakenings or next-day tiredness. Rather, the effects differ between individuals and studies. The clearest finding was that alcohol disrupts the normal balance of sleep stages.

How Alcohol Affects REM Sleep and Deep Sleep

Your brain cycles through different stages of sleep during the night. These include non-rapid eye movement (NREM) sleep and rapid eye movement (REM) sleep. Both contribute to normal functioning, and a healthy night involves cycling through them.

Alcohol and REM Sleep

REM sleep is associated with dreaming, memory processing and emotional regulation. Alcohol can delay the first REM period and reduce the total time spent in REM sleep.

The 2025 review found that this effect occurred even at relatively low doses. As alcohol intake increased, REM sleep disruption generally became greater. <Cite refs={[“turn749665search4″,”turn749665search6”]}/>

You may not notice this change directly. You might remember falling asleep quickly or not recall waking during the night. Neither experience tells you exactly how much REM sleep you obtained.

Alcohol and Deep Sleep

Deep sleep, also known as NREM stage 3 sleep, is important for physical restoration and other biological processes.

Alcohol can change the timing and amount of deep sleep. However, the 2025 review found that a shorter time to reach deep sleep was observed only at high doses. That does not mean drinking improves deep sleep overall.

A change in one sleep stage should not be mistaken for better sleep as a whole. The normal balance between sleep stages matters.

Why You May Wake Up During the Night

Some people fall asleep quickly after drinking but find themselves awake in the early hours of the morning. Alcohol may contribute to this pattern, although it is not the only possible cause.

As your body metabolises alcohol, its sedating effects diminish. Sleep may become less continuous, and other effects of drinking can make the night uncomfortable.

For example:

• Thirst and dehydration-related symptoms may make you uncomfortable.
• Needing to urinate can interrupt sleep.
• Stomach discomfort or reflux may make it harder to remain asleep.
• Hangover symptoms can affect how rested you feel the next morning.

The effects vary with the amount consumed, the timing of drinking, individual metabolism and other health factors. Not everyone experiences the same pattern, and current research does not establish that alcohol consistently reduces total sleep time in every person.

If you frequently wake during the night, it is worth considering alcohol alongside other possible causes, including caffeine, stress, medication effects, insomnia and sleep apnoea.

Can Alcohol Make Snoring and Sleep Apnoea Worse?

Yes. Alcohol is particularly relevant if you snore heavily or have obstructive sleep apnoea (OSA).

During sleep, the muscles that help keep your upper airway open naturally relax. Alcohol can further relax these muscles, making the airway more likely to narrow or collapse in susceptible people.

A systematic review and meta-analysis of 14 studies involving 422 participants found that alcohol increased the apnoea-hypopnoea index (AHI), which measures the frequency of breathing disturbances during sleep. The effect was larger among people who snored and those already diagnosed with OSA. The analysis also found a reduction in average oxygen saturation. <Cite refs={[“turn749665search0″,”turn749665search1”]}/>

Alcohol does not affect everyone’s breathing in the same way, but it can make an existing problem worse.

If you have sleep apnoea, avoiding alcohol—particularly near bedtime—is a sensible step. Continue any prescribed treatment, including CPAP, as directed.

Seek medical advice if you experience loud habitual snoring, witnessed pauses in breathing, gasping during sleep or persistent daytime sleepiness.

How Long Before Bed Should You Avoid Alcohol?

There is no universally established cutoff that guarantees alcohol will not affect your sleep. The effect depends on how much you drink, when you drink, and how your body processes alcohol.

A practical approach is to avoid alcohol close to bedtime and allow a longer interval after heavier drinking. Some general sleep-hygiene advice suggests leaving around four hours before bed, but this should not be treated as a scientifically guaranteed safe interval.

For example, if you plan to go to bed at 10 p.m., you could aim to finish drinking by 6 p.m. or earlier. This is a behavioural target, not a promise that your sleep will be unaffected. A large amount of alcohol may continue to affect your body and sleep well beyond that point.

If your priority is better sleep, avoiding alcohol is the more reliable option.

Coffee, a cold shower, exercise or drinking water will not rapidly remove alcohol from your bloodstream. These measures do not reliably speed up alcohol metabolism.

Does the Type or Amount of Alcohol Matter?

Wine, beer, whisky, rum and other alcoholic drinks all contain ethanol. There is no convincing evidence that one type of alcoholic drink is a good sleep aid.

The amount of alcohol matters more than the name of the drink. Serving sizes can be misleading: a large glass of wine, a strong beer or a generous pour of spirits may contain more alcohol than you realise.

The amount of alcohol in a drink depends on both its volume and its alcohol concentration. For that reason, counting glasses alone may not accurately reflect how much you have consumed.

Drinks mixed with caffeine introduce another concern. Caffeine can increase alertness, but it does not cancel out alcohol’s effects on judgement, coordination or sleep.

No alcoholic beverage has been established as an effective treatment for insomnia.

Can Drinking Regularly Lead to Sleep Problems?

Regular alcohol use can create a difficult cycle. Someone who struggles to sleep may start drinking in the evening to relax. If sleep remains disrupted, they may begin relying on alcohol more often.

Over time, some people develop tolerance to alcohol’s sedating effects. They may need more to experience the same feeling of drowsiness, while the risks of alcohol-related harm remain.

The relationship between alcohol and insomnia can work in both directions. People with sleep difficulties may be more likely to drink to cope, and alcohol may then worsen their sleep. This does not mean alcohol is the only cause of insomnia, but it is an important factor to consider.

If you regularly struggle to fall asleep or stay asleep, cognitive behavioural therapy for insomnia (CBT-I) is an evidence-based treatment worth discussing with a healthcare professional. It addresses the habits and thought patterns that maintain insomnia rather than relying on alcohol for sedation.

If you drink heavily or every day, seek medical advice before stopping suddenly. Alcohol withdrawal can be dangerous for people who are physically dependent, and supervised treatment may be necessary.

What to Do Instead of Drinking for Sleep

You do not need an alcoholic drink to create a relaxing evening. A few consistent habits can support better sleep without the downsides of alcohol.

• Keep a regular sleep schedule. Go to bed and wake up at roughly the same time each day.
• Get daylight during the day. Morning light helps regulate your body’s circadian rhythm.
• Limit late-day caffeine. Coffee, tea, energy drinks and other caffeine sources can interfere with sleep.
• Exercise regularly. Physical activity supports overall health and can benefit sleep.
• Make your bedroom comfortable. Keep it dark, quiet and cool enough for comfortable rest.
• Address persistent insomnia. If sleep difficulties continue, seek appropriate medical advice rather than using alcohol as a treatment.

These habits may not solve every sleep problem, but they provide a better starting point than relying on alcohol.

Frequently Asked Questions About Alcohol and Sleep

1. Does alcohol help you sleep better?

Not reliably. Alcohol may make you feel sleepy, especially at higher doses, but research shows that it can delay and reduce REM sleep. It should not be used as a sleep aid.

2. Does one drink affect sleep?

The effect varies with the amount of alcohol, the timing and individual sensitivity. Research suggests that REM sleep can be affected even at lower doses, although the extent of the effect differs between people.

3. Why do I wake up in the middle of the night after drinking?

Alcohol’s sedating effects diminish as your body processes it. Sleep may become less continuous, while thirst, urination, stomach discomfort or other symptoms may also contribute to waking.

4. Is red wine good for sleep?

There is no convincing evidence that red wine improves sleep enough to justify drinking it for that purpose. Like other alcoholic drinks, it contains ethanol, which can disrupt normal sleep patterns.

5. Can alcohol worsen sleep apnoea?

Yes. Alcohol can worsen breathing disturbances during sleep, particularly in people who snore or have obstructive sleep apnoea. If you have OSA, discuss alcohol use with your healthcare professional and continue your prescribed treatment.

6. What is the best alternative to alcohol for insomnia?

For persistent insomnia, cognitive behavioural therapy for insomnia (CBT-I) is an evidence-based treatment. A regular sleep schedule and a comfortable bedroom may also help, but ongoing sleep problems deserve proper assessment.

Alcohol and Sleep: The Bottom Line

Alcohol may make you feel sleepy, but it is not a reliable way to improve sleep. Research shows that it can delay and reduce REM sleep, while heavier drinking may shorten the time it takes to fall asleep at the cost of greater disruption to normal sleep patterns.

It can also worsen snoring and sleep apnoea in susceptible people. If you want better sleep, avoid using alcohol as a bedtime routine and consider reducing or avoiding it, especially in the hours before bed.

Better sleep comes from supporting your body’s natural sleep processes—not from relying on alcohol to make you drowsy.

Also Read

References

1. Gardiner C, Weakley J, Burke LM, et al. The effect of alcohol on subsequent sleep in healthy adults: A systematic review and meta-analysis. Sleep Medicine Reviews. 2025;80:102030. PubMed | Full article
2. Kolla BP, Foroughi M, Saeidifard F, et al. The impact of alcohol on breathing parameters during sleep: A systematic review and meta-analysis. Sleep Medicine Reviews. 2018;42:59–67. PubMed | Full text
3. Simou E, Britton J, Leonardi-Bee J. Alcohol and the risk of sleep apnoea: A systematic review and meta-analysis. Sleep. 2018;42(1). PubMed