Health1 Does Alcohol Really Help You Sleep? (Science Explained) Many people believe alcohol helps them sleep—but scientifically, it often does the opposite. While a nightcap is a common tradition, the biological reality is that alcohol acts as a thief of high-quality, restorative rest.Table of Contents1. Why Alcohol Makes You Feel Sleepy2. What Happens During Sleep After Drinking3. Why You Wake Up in the Middle of the Night4. The Impact on Sleep Quality5. Do.. 2026. 4. 28. Previous 1 Next