Like you my HT consists of bicalutimide and lupron (three month dose). The fatigue comes and goes but I notice that if I can sleep my usual 7 hours without too many interruptions that my energy levels are good that day. However, I also take BP medication and it causes me to wake two or three time a night to urinate. The urge to urinate seems to accompany the hot flash and night sweats. I can control the urge to urinate a bit by taking the BP med just prior to bed time. If I have a fitful night I find myself napping all day which leads to another night of fitful sleep. (Viscious circle) Just last Saturday I slept almost all day and woke at 2 am the next morning.
Sometimes I just skip all of the meds for a day and I seem to sleep much better. I only do this on rare occasion when my sleep pattern gets really messed up. I am retired but still try to maintain my schedule of early to bed early to rise. Just do not like getting off to a late start even if it is to do nothing.