Eating only protien (versus carbohydrates) should smooth out the hunger. Keeping busy helps me ignore the hunger. For the first two weeks, the hunger was mostly mental. Drinking lots of water helps also curb the hunger as well as keep me focused. I don't know if there is a universal answer, just my experience. I don't sleep any better or any worse during versus before the diet. And actually, I've wanted to go to bed earlier to so I can sleep through the hunger rather than be awake to deal with it. Four, almost five weeks in, I don't have any mental hunger any more, I still have some occasional physical hunger, but its timeline varies. Somedays I feel like I could go all day without eating, somedays two meals isn't enough. I always stick to two meals a day: one breakfast, and one lunch which eventually moved back towards about three hours after normal lunchtime.

Try eating even less. I don't eat anything and I'm never hungry. (This is because I have a lot of fat on my body.)

If you're fat, you shouldn't ever be hungry, but eating food actually makes you go through cycles of hunger.

Stop eating altogether you get a steady hormonal state that is never hungry (until your fat reserves deplete).

Also, the desire to want to "feel full" is something that's hard to overcome. I'm not sure I'm there yet.

Feeling "full" means overeating.

I read a comment on reddit once: "hunger" is telling you when to eat, not how much to eat.