Is There Something in Wine That Makes You Sleepy? The Science of Drowsiness
                                
                                
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                                    5 min read                                
                            
                                A study published in 2013 found that, at all dosages, alcohol consumption causes a consolidated first half of sleep but significantly increases sleep disruption in the second half. This complex relationship is at the heart of the common question: is there something in wine that makes you sleepy? The answer is a multi-faceted one, involving several compounds beyond just the alcohol content.