I can't go to sleep early and have a very hard time waking up on time for any reasonable job; I'm totally glad to find out that I'm the one who isn't the mutant! I already have a split uvula, which is one of the first things I checked when my kids were born, in case I'd passed it on...
Thank the inventor of the snooze button! I can get up at 7 IF I set my alarm for 6:15 and hit the snooze button for about 45 mn; I cannot get up at 7 if that's when my alarm is set without being groggy and dangerous until 10. I have been known to sleep through the most amazing things, if they are happening in the early morning.
Maybe my version of the "normal" allele is actually overactive...