Who needs to count sheep?

There was an ad on the radio a couple days ago for a revolutionary new prescription sleep aid; the latest in a long line of sleep aids claiming to be “non-addictive and non-habit forming.” (Believe that and I’ve got some ocean-front property in Arizona you might be interested in.) At the end of the commercial came the usual list of possible side-effects that make the cure sound worse than the disease. Midway through the list was one that really caught my attention.
May cause drowsiness.
Isn’t that the entire point?