Prophet Muhammad (peace be upon him) said: “Allah made the early hours blessed for my Ummah.”(Ahmed)
Such gems of productivity are the sources of blessings which we should seek to make our life productive. Waking up early is such an important step to being blessed and feeling good throughout your day.
Try to wake up for Tahajjud, and then work during the hours before Fajr Salah. If you cannot, then at least wake up for Fajr and stay up till sunrise before you return to sleep. Those hours are filled with Barakah. If you’re able to go to work in those hours, do so, you’ll get much more work done than the whole day put together!