It depends on how much you take and how often you take it.

I used to be out cold all the time if I took 1mg, so I split those into halves and quarters and took those.

Now, depending on my anxiety levels, .25mg is often still enough to take the edge off without impairing my functioning at all, but if I'm really off I can take 1mg and still function, but I reserve taking that much for only the worst cases because it does bring me down and a lot and can impair my functioning. I usually end up napping after taking a full mg.

I have also learned though how to know if I need klonopin or if I can take Seroquel. Being able to differentiate my anxiety has made me able to use the klonopin less.