Celestial Seasonings Sleepytime Extra is a caffeine-free herbal tea that builds on the original Sleepytime blend (chamomile, spearmint) by adding valerian root, a natural sleep aid, for an enhanced calming effect to help users unwind before bed, featuring ingredients like valerian, chamomile, and spearmint for relaxation, with a warning for adults to consult a doctor if pregnant, nursing, or on medication due to the valerian.