Which part of the homeostasis feedback loop determines a response toa
homeostatic imbalance? *

Homeostasis is maintained by the body's responses to adverse stimuli, ... generally a region of the brain called the hypothalamus, signals an effector (e.g. ... If positive and negative feedback loops are affected or altered, homeostatic imbalance

you may having too much sleep.. a good night sleep consists of about 7 hours. more than that could be the reason you're still tired throughout the day.