The NyQuil hangover

I'm convinced that NyQuil should have a warning label about having to work within 37 hours of taking it. I took what I thought was the recommended dose, hoping I could actually shake this cold and get a good night's sleep. I'm not sure that what I did last night counted so much as "sleeping" as much as it was "passing out."

This morning, I'm left with the worst part of having taken NyQuil. The medicine part has worn off, but the sleep-aide part hasn't. I have the NyQuil hangover.