Hi Liam,
I read this thread with interest, it is everything that I have been suffering from. I am on Prostap, and I haven't had a full night's sleep for the best part of 3 years or more! I have bags under my tired old eyes that would be the envy of any self respecting Zombie. I've stopped fighting it and I quite often end up just get up out of bed to read a book or to write some rubbish for the chat.
It's kind of funny that my PCa journey started off with interrupted sleep, that was the PCa symptom, having to get up to pee several times a night. Now that I am post radical treatments but still on Prostap, I reckon that it is the hot sweats that wakes me up (every 1-2 hours) and then having woken up my body then takes the opportunity to decide that it wants a pee. Of course, then having got up to have a pee, I then spend some time with covers off cooling off, it can be countless minutes before getting back into a slumber before the next hot sweat and the interrupted sleep cycle continues.
As you have seen, there are a few things you can try to help, but I haven't found anything that helps me yet, other than the consumption of a few beers or glasses of red, but the cost of that is the prospect of consequently being wiped out the day after and/or the day after that.
Good luck, if you do find the silver bullet then let us know 😬.
Spongebob