The Science of Fasting

I have been doing this for about a month now, worked up to skipping one day a week entirely and keeping my 8 hour window. I have enjoyed it so far.
It's helped me:
Control my drinking since I stop at the end of the window.
I've lost I think 5lbs total, which considering I have been not exercising I'm ok with the progression.
I need less sleep. I have been staying up later and getting up earlier and feeling slightly more awake when I do.
I think I am more irritable (but that's due to the lack of drinking and less the hunger I think)

Anyone else updating and having success with it?