You're right. I took a Claritin at 10 pm, and didn't go to sleep until 5 am, only to be woken up at 9 am. I took a Benadryl to try and combat the non-drowsy effect (wow, how often do you hear that?) but it apparently did not work. Now, I'm trudging around like a drunken fool. And WHOO HOO! I'm going mini-golfing in a few hours. I'm gonna sleep well tonight!