[trabant00]

Do as much as you can and stop worrying so much about procrastination. Nobody is working as hard as they claim not even (or especially) the self help gurus. You are not a robot and even a robot breaks sooner if you ask 100% of it.

If you have problems that you think cause procrastination, because you mentioned sleep, definitely address those for your health. Maybe you will be more productive, maybe not, that's not the important part.