I am bipolar and I don't stay up for days at a time. That's more a Bipolar I thing. I'm Bipolar II and your daughter could be too. The fact that she's sleeping so much is a big red flag for me--that's atypical for depressives. Most people with depression have trouble sleeping. You need a better psychiatrist, for real.
The stabilizer might not be the answer you're looking for--but you need a doctor who sees she's in pain and will work with you all to find a cocktail that works. Most BiPolar (BP) people take several medications (if they're doing medication, not all do)