How long until espresso wears off? The definitive guide to caffeine metabolism
                                
                                
                                •
                                
                                
                        
                                    
                                    7 min read                                
                            
                                According to the Sleep Foundation, caffeine's half-life can range from 2 to 12 hours, a dramatic variation that explains why figuring out how long until espresso wears off can be so complex. While the stimulating effects are felt quickly, the time it takes for those effects to subside depends on numerous individual factors.