Non drowsy cold medicine

The other night I saw the clock at 1 am, 2 am, and then 3 am. Then I think I finally fell asleep. But then I woke up early the next morning. I thought what did I eat or drink to keep me up? I went through the day and I thought I didn't have caffeine or anything that would keep me from sleeping. Then I realized what it was....non drowsy cold medicine means non drowsy. I had been taking the cold medicine throughout the day and I took some in the evening. I can tell you that non drowsy means non drowsy. If you don't want to sleep be sure and take the non drowsy medicine! I had to laugh as I thought about it...