Quote from ThrikI don't really have problems sleeping, I'm just an idiot and keep going to bed late because I'm working on something. Almost every damn night I see it get to about 11pm and thnk better 'better wrap up and go to bed in a moment'. Then it's suddenly 2am and FFS.
Interestingly, being single seems to have made it a lot easier to fall into stupid sleeping patterns because who cares if I'm up until late making funny sounds with a synth. I wonder what the statistics would be if single/partnered peoples' sleeping habits were confirmed.
I used to have a routine with my ex's. In bed by 12-1. Up at 8. Now it's more like in bed at 8 up at 12-1. 
can increase to 9-12 during week end.Well if it can reassure you these are statistics, so in reality the impact is less important even if it is real but I discussed it with a neurologist, he explained me that 8 hours is good, and also there are not permanent damage to the brain with a mild sleep issue:)