If I wake up at night after chazot do I say birkat hatorah before I learn? What if I slept after chazot and woke up an hour later. My next question is when it becomes Day do I make another birkat hatorah? Thank you
You would only say birkas hatorah once when you wake up since it is a new day for you, even though the sun will only rise a few hours later.
Shulchan Aruch O:CH 47-12,13.