Task: Question Answering
Input (English): Context: [ Blue Pill = sleeping pill , Unisom , or maybe it 's the Target brand of Unisom . ] 8/14/08 7:27 pm Well , I think I caught up on sleep last night . Steve thinks the iced tea I ' ve been drinking on the way home may be disrupting my sleep . He usually brings me iced water , but lately I ' ve requested iced tea . 
Question: What may be the reason the tea disrupts sleep ?
Output (English): It has too much caffeine in it causing sleepless nights .