Thank you for choosing DoctorSpring.
Your Doctor has prescribed Seroquel not only for your insomnia, but also to help you with the Bipolar illness. While reducing the dose might be a good option to decreased the drowsiness, the dose might be inadequate for the Bipolar treatment. Since you started the medication on Friday only you can wait for a week more. Most likely there will be some amount of tolerance and your sleepiness should disappear.
I would like to know whether you are on Seroquel or Seroquel XR (extended release preparation)
Hope this helps
You can reply as followup
Feel free to ask followups / clarifications