I agree with just about everyone here that it's an individual thing, when you should stop eating.
I get up at 5 and like to eat almost right away, I have my coffee, for some reason can't drink anything cold in the a.m., kills my tummy, and then have something to eat, usually some type of oatmeal.
I generally, but not religiously practice a different kind of fasting than John, I do a juice/veggie fast two non-consecutive days a week. Kind of like the 5:2 diet but not as strict.
Not sure what this has to do with your original question, but felt the need to share that
anyhow, I don't believe you should go to bed hungry, unless you want restless sleep, and I do believe that sleep is an important factor in body function, if your body is functioning properly then you will be more successful in your weight loss efforts and more importantly your overall health.
best to all