I agree with most other posters...7-8 hours of sleep, don't drink too much coffee or eat too much sugar/junk food, adapt a good diet and exercise...which I don't do at all. I don't sleep enough so then I rely on coffee, I drink too much beer and eat greasy chicken wings. >.< So do the opposite of what I do lol.

As for white noise, I just leave my air purifier on at night. Seems to keep out all the random noises like sirens and the public transit trains going by. When someone mentioned the hair dryer thing...I remember seeing that whole "My Strange Addiction" thing on TLC, and the girl actually burned herself a couple times while sleeping with it: My Strange Addiction: Lori Sleeps With Blow Dryer : Video : TLC