Dneel,
First - Congrats on a great choice. 4 days is HUGE. But it is just the beginning.
Second - Sleeplessness is a withdrawal symptom. EMBRACE withdrawal symptoms. B]Withrawals are a privilege reserved to those who have the guts to quit.[/B] Embrace the withdrawals.
How do you embrace withdrawals? Easy...change your attitude. Attitude is everything. The attitude you have when you start start any undertaking will largely determine your success. (that's true for anything in life, by the way...but let's just focus on quitting). You can't control withdrawal symptoms, but you can control YOUR ATTITUDE.
So, embrace those symptoms by changing your attitude about them. How do you do that? Easy, don't fight it. Don't toss and turn in bed. That just makes you frustrated and angry, right? Just get up. Yes, I know you're tired...but laying in bed isn't going to do anything anyway. Might as well get up and do something you like to do.
Turn the tables on the Nic Bitch by not trying to sleep. Personally, I tinkered with stuff in the garage...everything from changing the air filter on my lawn mower to "attempting" to fix the electical system on a non-running MGB. (I discovered why someone said, "if Lucas made guns, wars would not start.") My MBG still doesn't start...but I'm quit.
My point is that I changed my attitude..."I GET to do this stuff because I CHOSE to quit." When I quit worrying about trying to sleep, sleep came.
What do you think the victims of mouth/throat cancer would do to GET do work on motors at night? Or GET to have their jaw and tounge back again? Or get to do Insanity workouts? See, withrawals really are a privilege, right?
You had the nuts to quit, so now embrace the consequence of your success...withdrwawls. Get the right attitude and you'll make your quit easier.
Stay strong, brother!