Is The Milky Tea Good for Little Kids? My daughter drank a glass of milky tea before she went to bed last night. Guess what? After two bedtime stories, she was not sleepy but grew more and more excited. She spoke more loudly than usual she did at bedtime. She kept asking me to tell her another story. I was exhausted and tired to speak any more. She cried and said she was scared at the calls of frogs, which was very common at this time of the year. So I doubt there is some active ingredients such as Caffeine in the milky tea.