What is the main ingredient in sleepy time tea?
                                
                                
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                                    4 min read                                
                            
                                Sleepytime tea, a popular herbal blend introduced in 1972 by Celestial Seasonings, has become a global bedtime ritual. The primary active compound responsible for its calming effect is apigenin, found in the delicate and floral chamomile that is the main ingredient in sleepy time tea. This tea is more than just a single herb, it's a symphony of botanicals designed to help you unwind and prepare for rest.