You had a couple of drinks and fell asleep the moment your head hit the pillow. Then you woke at 3 a.m., wide awake and thirsty, and felt foggy all morning. This is the most common complaint about alcohol and sleep, and the cause is well understood. Alcohol helps you fall asleep faster, but it makes the rest of the night's sleep worse. Below is why alcohol ruins sleep, what the research says about REM, and the choices that make the biggest difference tonight.
Alcohol and sleep: why falling asleep faster isn't the win it seems
Alcohol is a sedative. It boosts GABA, the brain's main calming signal, so you tend to drift off sooner. In the first few hours, that sedation can even deepen slow-wave sleep. The trouble starts as your liver breaks the alcohol down. As blood alcohol falls, your body swings the other way. This rebound brings lighter sleep, more awakenings and, for some people, a racing heart. It lands in the second half of the night, which is when you would normally get most of your REM sleep.
What the research says about REM
A widely cited 2013 review of 27 studies, published in Alcoholism: Clinical and Experimental Research, found that alcohol reliably shortened the time it took to fall asleep. At moderate and higher doses, it also delayed and reduced REM sleep early in the night. REM is the stage linked to memory consolidation and emotional processing. That is why a night of drinking can leave you feeling unrested even when your total hours look fine. The effect depends on the dose: more alcohol generally means more disruption.
Other ways a drink disrupts the night
- Bathroom trips and dehydration: alcohol suppresses vasopressin, the hormone that tells your kidneys to hold on to water.
- Snoring and breathing: alcohol relaxes the muscles in your throat, which can make snoring and sleep apnea worse.
- Heart rate: many people see a higher overnight heart rate and lower heart-rate variability on their wearables after drinking.
Practical choices for better sleep after drinking
1. Get the timing right
Your body clears roughly one standard drink per hour, though this varies from person to person. If you're drinking, finish your last one at least three to four hours before bed so most of it is metabolized before you sleep. In Canada, a standard drink is 13.45 g of pure alcohol. That's about 341 mL of 5% beer, 142 mL of 12% wine, or 43 mL of 40% spirits.
2. Choose lighter drinking
Because the sleep effects grow with the dose, fewer standard drinks is the single most effective change you can make. Canada's Guidance on Alcohol and Health notes that risk rises with every additional drink. Check the alcohol by volume on whatever you're drinking, count your drinks honestly, and set a number before the evening starts.
3. Hydrate on purpose
Have a glass of water with every drink and another before bed. Watch your mixers too. Sugary mixers add calories and can affect how you feel overnight, and carbonated ones can leave you bloated and uncomfortable when you lie down.
4. Protect the rest of your routine
- Keep your bedroom cool, dark and quiet.
- Wake at your usual time instead of sleeping in, so your body clock stays on track.
- If you wake at 3 a.m., don't reach for another drink to get back to sleep.
Where Aura fits into a lighter night
We made Aura for evenings when you want a drink without overdoing it. Each can is premium distilled vodka with alkaline water (pH 8.5+) and natural flavour. It has no added sugar, no artificial sweeteners and no preservatives, and it's gluten-free. Aura is completely still, with zero carbonation: no bubbles means no bloating. That makes it easy to sip slowly alongside a glass of water. Aura is still an alcoholic drink, though, so the timing and quantity advice above applies to every can, including ours. You can read more about why Aura is made the way it is.
Enjoy responsibly, and only if you're of legal drinking age in your province. Never drink and drive. If your sleep problems persist, talk to a healthcare provider.
Find your flavour
Explore Cucumber Lime, Coconut Pineapple and Mango Peach in our vodka water cocktails, sold in cases of 24 355 mL cans. If you're in Ontario, you can order direct and we'll deliver to your Ontario address. In British Columbia, look for Aura at BC Liquor Stores and licensed private retailers. In Alberta, look for it at AGLC-licensed private retailers. Use our where to buy page to find a store near you.