Does Alcohol Help You Get Back to Sleep?

Short answer: no. Alcohol sedates you, which tricks you into thinking it's helping you sleep. Sedation isn't the same as sleep.

Two things go wrong. Alcohol reduces rapid eye movement (REM) sleep, the stage most tied to waking up restored, and it doesn't take much: the reduction starts at around two standard drinks [2]. And as your body clears the alcohol, the second half of the night breaks up into lighter, more interrupted sleep [1]. At 3am you're already in that second half, so a drink now lands in the worst possible place.

So a nightcap doesn't get you back to sleep. It borrows a few minutes now and charges interest later.

If you're lying there wide awake, the better move is undramatic: leave the bedroom, stay in low light, and do something boring until sleep creeps back. The full routine is in what to do at 3am when you can't get back to sleep, and there's more on how alcohol and coffee affect your sleep.

If you've come to rely on a drink to get to sleep at all, that's worth raising with your doctor rather than solving alone.

If the middle-of-the-night waking has become your normal, Rest works on the habits and thoughts keeping you awake. It's a program built on the principles of CBT-I (Cognitive Behavioral Therapy for Insomnia). Start with Rest »

Citations

1. Ebrahim, I. O., Shapiro, C. M., Williams, A. J., & Fenwick, P. B. (2013). Alcohol and sleep I: effects on normal sleep. Alcoholism: Clinical and Experimental Research, 37(4), 539–549. https://doi.org/10.1111/acer.12006 — "At all dosages, alcohol causes a reduction in sleep onset latency, a more consolidated first half sleep and an increase in sleep disruption in the second half of sleep."

2. Gardiner, C., Weakley, J., Burke, L. M., et al. (2025). The effect of alcohol on subsequent sleep in healthy adults: A systematic review and meta-analysis. Sleep Medicine Reviews, 80, 102030. https://doi.org/10.1016/j.smrv.2024.102030 — "disruptions to REM sleep occurred following consumption of a low dose of alcohol (≤0.50 g∙kg-1 or approximately two standard drinks) and progressively worsened with increasing doses of alcohol."