I wasn't serious
There is noway you should fall asleep. I think HG is to active. That would be like Tiger Woods falling asleep as he tee's off on the back nine. Bret Farve falling asleep after he drops back (though some might claim he does fall asleep at times). It's unlikely that it happens.
Also If you are that tired at launch then you should not launch.
If you are in the air and realize you are getting that tired, you should not have launched, or landed a long time ago.
If you have a condition (narcolepsy (sp?)) that might cause you to simply fall asleep, you should not be flying, at least not solo!