Looks like I might have this particular gene, Although I can sleep longer most nights I can make do with just 5-6 hours and find it enough to function (I do drink a cup of coffee every morning but an hour or so after waking up so I dont mess with my natural ability to wake myself up), my wife would always be envious how I am able recharge my batteries with shorter sleep spans. Would be interesting to confirm this if 23andme has a new custom report to test this for me.