This amino acid is found naturally in tea leaves, particularly in green tea. It has gained popularity for its potential sleep-enhancing benefits. Here's how it may help with sleep: Stress Reduction: could promote relaxation and reduce anxiety without causing drowsiness. Better Sleep Quality: It may help you fall asleep faster and enjoy a deeper, more restful sleep. Faster Sleep Onset: could reduce the time it takes to fall asleep. Alpha Brain Waves: It enhances alpha brain waves associated with wakeful relaxation. No Drowsiness: Unlike sedatives, L-theanine doesn't make you feel groggy the next day. Complements Other Sleep Aids: It can be used alone or with other sleep supplements. Before using L-theanine, consult a healthcare provider, especially if you have health issues or take medications, to ensure it's safe for you.