Did your doc scribe it specifically for helping you to sleep or was it for a different reason as your dose seems quite high for it to be used for sleeping disorders but average for other things.
If you are OK with sleeping this long I wouldn't worry about it , but , if it's affecting your day then you need to do something.
If it was scribed to help you sleep then your doc could lower the dose BUT if it was scribed for something else then they might want to change you to a different antipsychotic??
Please talk to your doc as I am NOT a proffesional , and carry on taking your meds as scribed until you can see your doc.
But as I said before , if it's not broken , don't fix it
Nice to see you on here , take care ,
Smiler