Cliche Name
Probably drunk
Sure, it's completely safe....
I'm going to assume this is sarcasm.
I WOULD SAFELY SAY.. HE IS and READ BELOW:
Theoretically yes, but it's certainly not advisable. Each has a sedative as an active ingredient, and taking the two amplifies that sedative effect. An average person, on occasion, would not be harmed with a single dose of NyQuil mixed with a single dose of Benadryl, but it will knock you out cold, so don't plan on sleeping eight hours and then waking up feeling refreshed. I'd imagine you'd sleep ten and then still feel drowsy. However, I'm not a pharmacist, this is a basic chemistry education I'm working with, so I highly suggest you ask your doctor first, since everyone has a different body chemistry. Also prolonged use could damage your liver and kidneys, so don't plan on doing this every night unless you like dialysis and liver transplants. Hell, you probably won't get a liver transplant if yours fails due to prolonged mixing of meds.
http://wiki.answers.com/Q/Can_you_Mix_Nyquil_and_benadryl