[eru]

Having a nap after work before continuing, and then continuing may help.

Or have you tried going to bed really early and getting up much earlier?

[jjrumi]

Never tried to have a nap before continuing, although now that I read you it sounds like a natural thing to try. Thanks.

[eru]

Good luck! And keep in mind that napping is a skill to practice. Don't despair if you can't fall asleep within a few minutes the first few times you try it.