I often encourage my patients to drink tea. Black tea is a lower- caffeine alternative to coffee during the day, and decaffeinated tea can be a calming part of a nighttime power-down ritual before bed. Whatever time of day or night, drinking a cup of tea can be a soothing, relaxing ritual.
L-theanine is a compound that occurs naturally in green tea and black tea and it is also available in supplement form. L-theanine can help with relaxation, focus, and sleep.