sedation
"My experience :  I was prescribed 1-2, 25 mg tabs before bed for sleep.  It did put me to sleep in about an hour to 2 hours and I  would only wake up once during the night but the grogginess, zombie-like feeling made it very difficult to wake up and stay up the rest of the day.  I would sneak in a nap or two.  It would finally wear off around 4 in the afternoon.  After about a month, I stopped taking it."