How do I wake up Dr. Fred?

Hint 1 of 6:

First, wait until he's out of the control of the IRS.

Hint 2 of 6:

You should remember what kept Dr. Fred awake all of these weeks.

Hint 3 of 6:

The same thing will wake him up now.

Hint 4 of 6:

That's coffee -- the kind with caffeine.

Hint 5 of 6:

Then you need to give him some to drink, but you'll need to find a way to
pour it neatly into his mouth.

Hint 6 of 6:

Try sticking the funnel in Dr. Fred.