[cesarbs]

You would probably make even more progress if you allowed yourself a good sleep schedule. If you "try to get away with as little sleep as possible", it is very likely you are sleep deprived, which leads to bad decisions and more frequent mistakes.

[anonhacker]

It's reasonable to assume I'm hurting my productivity but like I said I'm doing the whole nights and weekends thing, a couple extra hours of less productive work is better than none.

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.