Studying astronomy.. just read the text books late at night.. haha..
Warm Milk
Warm Shower
Meditation
Do not watch television.. at least 1/2 before bed it stimulates your brain too much. And, although some believe coffee keeps you awake. I have heard the opposite effect for several others. So perhaps Java at night.
(hide) If all of a sudden the site shows up in a different language, just click the flag for your language and it will be back to normal. (pauloaguia) (show all tips)