I'm well aware of the potential consequences health and otherwise but I see it as a short term cost for a long term benefit.
I'm well aware of the potential consequences health and otherwise but I see it as a short term cost for a long term benefit.
Don't ask for sources, because I don't have any, this is just an anecdote and a hunch. :)
I'm in the fortunate position now of being able to set my own work schedule. I almost never use an alarm clock, but I still get up around 8am, which is my personal indicator that I'm sleeping enough. I've also found that I have no problem working 12 or 14 hour days, much more than your average worker, but when I do so, I never take the time away from sleeping, but other activities instead.
As far as grogginess/tiredness after you wake up goes that's related to where in your sleep cycle you wake up. I use one of the numerous iPhone/Android apps that use the accelerator to detect and wake you up at the end of a sleep phase.