seroquel xr50.. concerns?

My doctor just put me on seroquel xr 50, today. I am taking it for depression and bipolar. She went over the symptoms. I did my research abit on it and seen that it helps with sleeping. Doctor told me too. I found some stories about it making you really tired. From experience I have watched someone go through a change in medicine for depression... Made him fall asleep a lot and drool. My concern is, I have a 5 month old who needs me 24 7. Periodically through the night.. I am alone with him on weekdays and I have his dads help on weekends (longhauler). Should I be worried?